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Finding the Fourth Proportional to 133,398.55, 200,079.60 and 39,904.30

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Solution

The fourth proportional to 133,398.55, 200,079.60 and 39,904.30 is: 59,851.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    133,398.55 : 200,079.60 = 39,904.30 : x
  2. Step 2: Convert to fraction form
    133,398.55/200,079.60 = 39,904.30/x
  3. Step 3: Cross multiply
    133,398.55x = 200,079.60 × 39,904.30
  4. Step 4: Simplify right side
    133,398.55x = 7,984,036,382.28
  5. Step 5: Solve for x
    x = 7,984,036,382.28/133,398.55
  6. Step 6: Final answer
    x = 59,851.00

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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.