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Finding the Fourth Proportional to 438,657.30, 658,277.55 and 249,117.30

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Solution

The fourth proportional to 438,657.30, 658,277.55 and 249,117.30 is: 373,841.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,657.30 : 658,277.55 = 249,117.30 : x
  2. Step 2: Convert to fraction form
    438,657.30/658,277.55 = 249,117.30/x
  3. Step 3: Cross multiply
    438,657.30x = 658,277.55 × 249,117.30
  4. Step 4: Simplify right side
    438,657.30x = 163,988,325,906.62
  5. Step 5: Solve for x
    x = 163,988,325,906.62/438,657.30
  6. Step 6: Final answer
    x = 373,841.55

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.