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Finding the Fourth Proportional to 402,505.00, 555,445.19 and 230,417.16

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Solution

The fourth proportional to 402,505.00, 555,445.19 and 230,417.16 is: 317,968.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,505.00 : 555,445.19 = 230,417.16 : x
  2. Step 2: Convert to fraction form
    402,505.00/555,445.19 = 230,417.16/x
  3. Step 3: Cross multiply
    402,505.00x = 555,445.19 × 230,417.16
  4. Step 4: Simplify right side
    402,505.00x = 127,984,100,438.23
  5. Step 5: Solve for x
    x = 127,984,100,438.23/402,505.00
  6. Step 6: Final answer
    x = 317,968.97

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.