Home / 314,932.40-472,427.40-127,905.20

Finding the Fourth Proportional to 314,932.40, 472,427.40 and 127,905.20

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Solution

The fourth proportional to 314,932.40, 472,427.40 and 127,905.20 is: 191,869.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,932.40 : 472,427.40 = 127,905.20 : x
  2. Step 2: Convert to fraction form
    314,932.40/472,427.40 = 127,905.20/x
  3. Step 3: Cross multiply
    314,932.40x = 472,427.40 × 127,905.20
  4. Step 4: Simplify right side
    314,932.40x = 60,425,921,082.48
  5. Step 5: Solve for x
    x = 60,425,921,082.48/314,932.40
  6. Step 6: Final answer
    x = 191,869.50

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1.5x scale

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.