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Finding the Fourth Proportional to 261,388.40, 392,374.20 and 244,256.90

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Solution

The fourth proportional to 261,388.40, 392,374.20 and 244,256.90 is: 366,657.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,388.40 : 392,374.20 = 244,256.90 : x
  2. Step 2: Convert to fraction form
    261,388.40/392,374.20 = 244,256.90/x
  3. Step 3: Cross multiply
    261,388.40x = 392,374.20 × 244,256.90
  4. Step 4: Simplify right side
    261,388.40x = 95,840,105,731.98
  5. Step 5: Solve for x
    x = 95,840,105,731.98/261,388.40
  6. Step 6: Final answer
    x = 366,657.84

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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.