Home / 312,436.20-431,141.04-176,475.96

Finding the Fourth Proportional to 312,436.20, 431,141.04 and 176,475.96

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Solution

The fourth proportional to 312,436.20, 431,141.04 and 176,475.96 is: 243,525.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,436.20 : 431,141.04 = 176,475.96 : x
  2. Step 2: Convert to fraction form
    312,436.20/431,141.04 = 176,475.96/x
  3. Step 3: Cross multiply
    312,436.20x = 431,141.04 × 176,475.96
  4. Step 4: Simplify right side
    312,436.20x = 76,086,028,929.40
  5. Step 5: Solve for x
    x = 76,086,028,929.40/312,436.20
  6. Step 6: Final answer
    x = 243,525.01

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1.5x scale

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.