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Finding the Fourth Proportional to 385,907.88, 532,373.53 and 249,987.66

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Solution

The fourth proportional to 385,907.88, 532,373.53 and 249,987.66 is: 344,866.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,907.88 : 532,373.53 = 249,987.66 : x
  2. Step 2: Convert to fraction form
    385,907.88/532,373.53 = 249,987.66/x
  3. Step 3: Cross multiply
    385,907.88x = 532,373.53 × 249,987.66
  4. Step 4: Simplify right side
    385,907.88x = 133,086,813,010.64
  5. Step 5: Solve for x
    x = 133,086,813,010.64/385,907.88
  6. Step 6: Final answer
    x = 344,866.79

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1.5x scale

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.