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Finding the Fourth Proportional to 304,840.90, 457,520.55 and 136,620.10

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Solution

The fourth proportional to 304,840.90, 457,520.55 and 136,620.10 is: 205,046.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    304,840.90 : 457,520.55 = 136,620.10 : x
  2. Step 2: Convert to fraction form
    304,840.90/457,520.55 = 136,620.10/x
  3. Step 3: Cross multiply
    304,840.90x = 457,520.55 × 136,620.10
  4. Step 4: Simplify right side
    304,840.90x = 62,506,503,293.06
  5. Step 5: Solve for x
    x = 62,506,503,293.06/304,840.90
  6. Step 6: Final answer
    x = 205,046.32

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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.