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Finding the Fourth Proportional to 261,809.70, 392,714.55 and 242,564.10

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Solution

The fourth proportional to 261,809.70, 392,714.55 and 242,564.10 is: 363,846.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    261,809.70 : 392,714.55 = 242,564.10 : x
  2. Step 2: Convert to fraction form
    261,809.70/392,714.55 = 242,564.10/x
  3. Step 3: Cross multiply
    261,809.70x = 392,714.55 × 242,564.10
  4. Step 4: Simplify right side
    261,809.70x = 95,258,451,377.66
  5. Step 5: Solve for x
    x = 95,258,451,377.66/261,809.70
  6. Step 6: Final answer
    x = 363,846.15

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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.