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Finding the Fourth Proportional to 304,785.20, 456,400.20 and 242,577.20

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Solution

The fourth proportional to 304,785.20, 456,400.20 and 242,577.20 is: 363,246.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,785.20 : 456,400.20 = 242,577.20 : x
  2. Step 2: Convert to fraction form
    304,785.20/456,400.20 = 242,577.20/x
  3. Step 3: Cross multiply
    304,785.20x = 456,400.20 × 242,577.20
  4. Step 4: Simplify right side
    304,785.20x = 110,712,282,595.44
  5. Step 5: Solve for x
    x = 110,712,282,595.44/304,785.20
  6. Step 6: Final answer
    x = 363,246.91

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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.