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Finding the Fourth Proportional to 385,432.92, 531,833.92 and 242,090.84

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Solution

The fourth proportional to 385,432.92, 531,833.92 and 242,090.84 is: 334,045.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,432.92 : 531,833.92 = 242,090.84 : x
  2. Step 2: Convert to fraction form
    385,432.92/531,833.92 = 242,090.84/x
  3. Step 3: Cross multiply
    385,432.92x = 531,833.92 × 242,090.84
  4. Step 4: Simplify right side
    385,432.92x = 128,752,120,433.29
  5. Step 5: Solve for x
    x = 128,752,120,433.29/385,432.92
  6. Step 6: Final answer
    x = 334,045.47

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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.