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Finding the Fourth Proportional to 402,741.51, 555,644.99 and 249,724.64

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Solution

The fourth proportional to 402,741.51, 555,644.99 and 249,724.64 is: 344,534.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,741.51 : 555,644.99 = 249,724.64 : x
  2. Step 2: Convert to fraction form
    402,741.51/555,644.99 = 249,724.64/x
  3. Step 3: Cross multiply
    402,741.51x = 555,644.99 × 249,724.64
  4. Step 4: Simplify right side
    402,741.51x = 138,758,241,068.71
  5. Step 5: Solve for x
    x = 138,758,241,068.71/402,741.51
  6. Step 6: Final answer
    x = 344,534.24

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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.