Home / 313,488.60-469,911.20-123,872.19

Finding the Fourth Proportional to 313,488.60, 469,911.20 and 123,872.19

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Solution

The fourth proportional to 313,488.60, 469,911.20 and 123,872.19 is: 185,681.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,488.60 : 469,911.20 = 123,872.19 : x
  2. Step 2: Convert to fraction form
    313,488.60/469,911.20 = 123,872.19/x
  3. Step 3: Cross multiply
    313,488.60x = 469,911.20 × 123,872.19
  4. Step 4: Simplify right side
    313,488.60x = 58,208,928,830.17
  5. Step 5: Solve for x
    x = 58,208,928,830.17/313,488.60
  6. Step 6: Final answer
    x = 185,681.17

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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.