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Finding the Fourth Proportional to 261,832.67, 392,382.89 and 141,630.13

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Solution

The fourth proportional to 261,832.67, 392,382.89 and 141,630.13 is: 212,247.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,832.67 : 392,382.89 = 141,630.13 : x
  2. Step 2: Convert to fraction form
    261,832.67/392,382.89 = 141,630.13/x
  3. Step 3: Cross multiply
    261,832.67x = 392,382.89 × 141,630.13
  4. Step 4: Simplify right side
    261,832.67x = 55,573,238,031.37
  5. Step 5: Solve for x
    x = 55,573,238,031.37/261,832.67
  6. Step 6: Final answer
    x = 212,247.15

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1.5x scale

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.