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Finding the Fourth Proportional to 245,867.70, 368,801.55 and 243,534.90

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Solution

The fourth proportional to 245,867.70, 368,801.55 and 243,534.90 is: 365,302.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,867.70 : 368,801.55 = 243,534.90 : x
  2. Step 2: Convert to fraction form
    245,867.70/368,801.55 = 243,534.90/x
  3. Step 3: Cross multiply
    245,867.70x = 368,801.55 × 243,534.90
  4. Step 4: Simplify right side
    245,867.70x = 89,816,048,599.10
  5. Step 5: Solve for x
    x = 89,816,048,599.10/245,867.70
  6. Step 6: Final answer
    x = 365,302.35

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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.