Home / 314,966.72-472,380.12-90,326.18

Finding the Fourth Proportional to 314,966.72, 472,380.12 and 90,326.18

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Solution

The fourth proportional to 314,966.72, 472,380.12 and 90,326.18 is: 135,469.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,966.72 : 472,380.12 = 90,326.18 : x
  2. Step 2: Convert to fraction form
    314,966.72/472,380.12 = 90,326.18/x
  3. Step 3: Cross multiply
    314,966.72x = 472,380.12 × 90,326.18
  4. Step 4: Simplify right side
    314,966.72x = 42,668,292,928.49
  5. Step 5: Solve for x
    x = 42,668,292,928.49/314,966.72
  6. Step 6: Final answer
    x = 135,469.21

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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.