Home / 314,844.80-472,382.40-127,875.20

Finding the Fourth Proportional to 314,844.80, 472,382.40 and 127,875.20

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Solution

The fourth proportional to 314,844.80, 472,382.40 and 127,875.20 is: 191,859.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,844.80 : 472,382.40 = 127,875.20 : x
  2. Step 2: Convert to fraction form
    314,844.80/472,382.40 = 127,875.20/x
  3. Step 3: Cross multiply
    314,844.80x = 472,382.40 × 127,875.20
  4. Step 4: Simplify right side
    314,844.80x = 60,405,993,876.48
  5. Step 5: Solve for x
    x = 60,405,993,876.48/314,844.80
  6. Step 6: Final answer
    x = 191,859.59

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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.