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Finding the Fourth Proportional to 385,681.98, 532,064.37 and 249,759.72

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Solution

The fourth proportional to 385,681.98, 532,064.37 and 249,759.72 is: 344,553.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,681.98 : 532,064.37 = 249,759.72 : x
  2. Step 2: Convert to fraction form
    385,681.98/532,064.37 = 249,759.72/x
  3. Step 3: Cross multiply
    385,681.98x = 532,064.37 × 249,759.72
  4. Step 4: Simplify right side
    385,681.98x = 132,888,248,073.18
  5. Step 5: Solve for x
    x = 132,888,248,073.18/385,681.98
  6. Step 6: Final answer
    x = 344,553.95

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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.