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Finding the Fourth Proportional to 402,740.01, 555,642.92 and 249,723.14

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Solution

The fourth proportional to 402,740.01, 555,642.92 and 249,723.14 is: 344,532.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,740.01 : 555,642.92 = 249,723.14 : x
  2. Step 2: Convert to fraction form
    402,740.01/555,642.92 = 249,723.14/x
  3. Step 3: Cross multiply
    402,740.01x = 555,642.92 × 249,723.14
  4. Step 4: Simplify right side
    402,740.01x = 138,756,892,547.26
  5. Step 5: Solve for x
    x = 138,756,892,547.26/402,740.01
  6. Step 6: Final answer
    x = 344,532.18

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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.