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Finding the Fourth Proportional to 310,171.08, 428,049.30 and 176,047.56

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Solution

The fourth proportional to 310,171.08, 428,049.30 and 176,047.56 is: 242,953.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,171.08 : 428,049.30 = 176,047.56 : x
  2. Step 2: Convert to fraction form
    310,171.08/428,049.30 = 176,047.56/x
  3. Step 3: Cross multiply
    310,171.08x = 428,049.30 × 176,047.56
  4. Step 4: Simplify right side
    310,171.08x = 75,357,034,824.71
  5. Step 5: Solve for x
    x = 75,357,034,824.71/310,171.08
  6. Step 6: Final answer
    x = 242,953.13

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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.