Home / 314,470.08-434,393.28-251,251.20

Finding the Fourth Proportional to 314,470.08, 434,393.28 and 251,251.20

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Solution

The fourth proportional to 314,470.08, 434,393.28 and 251,251.20 is: 347,065.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,470.08 : 434,393.28 = 251,251.20 : x
  2. Step 2: Convert to fraction form
    314,470.08/434,393.28 = 251,251.20/x
  3. Step 3: Cross multiply
    314,470.08x = 434,393.28 × 251,251.20
  4. Step 4: Simplify right side
    314,470.08x = 109,141,832,871.94
  5. Step 5: Solve for x
    x = 109,141,832,871.94/314,470.08
  6. Step 6: Final answer
    x = 347,065.87

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.