Home / 370,205.10-555,307.65-103,974.30

Finding the Fourth Proportional to 370,205.10, 555,307.65 and 103,974.30

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Solution

The fourth proportional to 370,205.10, 555,307.65 and 103,974.30 is: 155,961.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,205.10 : 555,307.65 = 103,974.30 : x
  2. Step 2: Convert to fraction form
    370,205.10/555,307.65 = 103,974.30/x
  3. Step 3: Cross multiply
    370,205.10x = 555,307.65 × 103,974.30
  4. Step 4: Simplify right side
    370,205.10x = 57,737,724,193.40
  5. Step 5: Solve for x
    x = 57,737,724,193.40/370,205.10
  6. Step 6: Final answer
    x = 155,961.45

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.