Home / 370,919.80-556,379.70-134,432.20

Finding the Fourth Proportional to 370,919.80, 556,379.70 and 134,432.20

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Solution

The fourth proportional to 370,919.80, 556,379.70 and 134,432.20 is: 201,648.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    370,919.80 : 556,379.70 = 134,432.20 : x
  2. Step 2: Convert to fraction form
    370,919.80/556,379.70 = 134,432.20/x
  3. Step 3: Cross multiply
    370,919.80x = 556,379.70 × 134,432.20
  4. Step 4: Simplify right side
    370,919.80x = 74,795,347,106.34
  5. Step 5: Solve for x
    x = 74,795,347,106.34/370,919.80
  6. Step 6: Final answer
    x = 201,648.30

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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.