Home / 314,932.32-471,956.40-172,411.20

Finding the Fourth Proportional to 314,932.32, 471,956.40 and 172,411.20

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Solution

The fourth proportional to 314,932.32, 471,956.40 and 172,411.20 is: 258,374.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    314,932.32 : 471,956.40 = 172,411.20 : x
  2. Step 2: Convert to fraction form
    314,932.32/471,956.40 = 172,411.20/x
  3. Step 3: Cross multiply
    314,932.32x = 471,956.40 × 172,411.20
  4. Step 4: Simplify right side
    314,932.32x = 81,370,569,271.68
  5. Step 5: Solve for x
    x = 81,370,569,271.68/314,932.32
  6. Step 6: Final answer
    x = 258,374.78

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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.