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Finding the Fourth Proportional to 308,609.10, 462,913.65 and 98,268.30

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Solution

The fourth proportional to 308,609.10, 462,913.65 and 98,268.30 is: 147,402.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    308,609.10 : 462,913.65 = 98,268.30 : x
  2. Step 2: Convert to fraction form
    308,609.10/462,913.65 = 98,268.30/x
  3. Step 3: Cross multiply
    308,609.10x = 462,913.65 × 98,268.30
  4. Step 4: Simplify right side
    308,609.10x = 45,489,737,432.30
  5. Step 5: Solve for x
    x = 45,489,737,432.30/308,609.10
  6. Step 6: Final answer
    x = 147,402.45

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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.