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Finding the Fourth Proportional to 385,775.88, 532,392.66 and 216,008.52

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Solution

The fourth proportional to 385,775.88, 532,392.66 and 216,008.52 is: 298,104.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,775.88 : 532,392.66 = 216,008.52 : x
  2. Step 2: Convert to fraction form
    385,775.88/532,392.66 = 216,008.52/x
  3. Step 3: Cross multiply
    385,775.88x = 532,392.66 × 216,008.52
  4. Step 4: Simplify right side
    385,775.88x = 115,001,350,545.46
  5. Step 5: Solve for x
    x = 115,001,350,545.46/385,775.88
  6. Step 6: Final answer
    x = 298,104.05

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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.