Home / 472,718.46-709,077.78-157,178.10

Finding the Fourth Proportional to 472,718.46, 709,077.78 and 157,178.10

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Solution

The fourth proportional to 472,718.46, 709,077.78 and 157,178.10 is: 235,767.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    472,718.46 : 709,077.78 = 157,178.10 : x
  2. Step 2: Convert to fraction form
    472,718.46/709,077.78 = 157,178.10/x
  3. Step 3: Cross multiply
    472,718.46x = 709,077.78 × 157,178.10
  4. Step 4: Simplify right side
    472,718.46x = 111,451,498,212.62
  5. Step 5: Solve for x
    x = 111,451,498,212.62/472,718.46
  6. Step 6: Final answer
    x = 235,767.18

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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.