Home / 313,184.32-469,848.24-135,721.12

Finding the Fourth Proportional to 313,184.32, 469,848.24 and 135,721.12

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Solution

The fourth proportional to 313,184.32, 469,848.24 and 135,721.12 is: 203,612.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,184.32 : 469,848.24 = 135,721.12 : x
  2. Step 2: Convert to fraction form
    313,184.32/469,848.24 = 135,721.12/x
  3. Step 3: Cross multiply
    313,184.32x = 469,848.24 × 135,721.12
  4. Step 4: Simplify right side
    313,184.32x = 63,768,329,362.83
  5. Step 5: Solve for x
    x = 63,768,329,362.83/313,184.32
  6. Step 6: Final answer
    x = 203,612.78

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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.