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Finding the Fourth Proportional to 304,297.60, 456,446.40 and 126,931.90

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Solution

The fourth proportional to 304,297.60, 456,446.40 and 126,931.90 is: 190,397.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,297.60 : 456,446.40 = 126,931.90 : x
  2. Step 2: Convert to fraction form
    304,297.60/456,446.40 = 126,931.90/x
  3. Step 3: Cross multiply
    304,297.60x = 456,446.40 × 126,931.90
  4. Step 4: Simplify right side
    304,297.60x = 57,937,608,800.16
  5. Step 5: Solve for x
    x = 57,937,608,800.16/304,297.60
  6. Step 6: Final answer
    x = 190,397.85

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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.