Home / 314,720.95-472,278.27-127,732.45

Finding the Fourth Proportional to 314,720.95, 472,278.27 and 127,732.45

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Solution

The fourth proportional to 314,720.95, 472,278.27 and 127,732.45 is: 191,678.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,720.95 : 472,278.27 = 127,732.45 : x
  2. Step 2: Convert to fraction form
    314,720.95/472,278.27 = 127,732.45/x
  3. Step 3: Cross multiply
    314,720.95x = 472,278.27 × 127,732.45
  4. Step 4: Simplify right side
    314,720.95x = 60,325,260,508.86
  5. Step 5: Solve for x
    x = 60,325,260,508.86/314,720.95
  6. Step 6: Final answer
    x = 191,678.57

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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.