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Finding the Fourth Proportional to 402,750.91, 555,657.93 and 249,734.01

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Solution

The fourth proportional to 402,750.91, 555,657.93 and 249,734.01 is: 344,547.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    402,750.91 : 555,657.93 = 249,734.01 : x
  2. Step 2: Convert to fraction form
    402,750.91/555,657.93 = 249,734.01/x
  3. Step 3: Cross multiply
    402,750.91x = 555,657.93 × 249,734.01
  4. Step 4: Simplify right side
    402,750.91x = 138,766,683,047.20
  5. Step 5: Solve for x
    x = 138,766,683,047.20/402,750.91
  6. Step 6: Final answer
    x = 344,547.16

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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.