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Finding the Fourth Proportional to 402,747.93, 555,653.79 and 249,731.01

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Solution

The fourth proportional to 402,747.93, 555,653.79 and 249,731.01 is: 344,543.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,747.93 : 555,653.79 = 249,731.01 : x
  2. Step 2: Convert to fraction form
    402,747.93/555,653.79 = 249,731.01/x
  3. Step 3: Cross multiply
    402,747.93x = 555,653.79 × 249,731.01
  4. Step 4: Simplify right side
    402,747.93x = 138,763,982,187.03
  5. Step 5: Solve for x
    x = 138,763,982,187.03/402,747.93
  6. Step 6: Final answer
    x = 344,543.01

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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.