Home / 315,190.04-472,788.27-90,549.90

Finding the Fourth Proportional to 315,190.04, 472,788.27 and 90,549.90

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Solution

The fourth proportional to 315,190.04, 472,788.27 and 90,549.90 is: 135,825.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,190.04 : 472,788.27 = 90,549.90 : x
  2. Step 2: Convert to fraction form
    315,190.04/472,788.27 = 90,549.90/x
  3. Step 3: Cross multiply
    315,190.04x = 472,788.27 × 90,549.90
  4. Step 4: Simplify right side
    315,190.04x = 42,810,930,569.67
  5. Step 5: Solve for x
    x = 42,810,930,569.67/315,190.04
  6. Step 6: Final answer
    x = 135,825.77

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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.