Home / 315,334.90-473,002.35-128,250.10

Finding the Fourth Proportional to 315,334.90, 473,002.35 and 128,250.10

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Solution

The fourth proportional to 315,334.90, 473,002.35 and 128,250.10 is: 192,375.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,334.90 : 473,002.35 = 128,250.10 : x
  2. Step 2: Convert to fraction form
    315,334.90/473,002.35 = 128,250.10/x
  3. Step 3: Cross multiply
    315,334.90x = 473,002.35 × 128,250.10
  4. Step 4: Simplify right side
    315,334.90x = 60,662,598,687.74
  5. Step 5: Solve for x
    x = 60,662,598,687.74/315,334.90
  6. Step 6: Final answer
    x = 192,375.15

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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.