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Finding the Fourth Proportional to 312,870.93, 431,770.38 and 176,925.22

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Solution

The fourth proportional to 312,870.93, 431,770.38 and 176,925.22 is: 244,161.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,870.93 : 431,770.38 = 176,925.22 : x
  2. Step 2: Convert to fraction form
    312,870.93/431,770.38 = 176,925.22/x
  3. Step 3: Cross multiply
    312,870.93x = 431,770.38 × 176,925.22
  4. Step 4: Simplify right side
    312,870.93x = 76,391,069,470.98
  5. Step 5: Solve for x
    x = 76,391,069,470.98/312,870.93
  6. Step 6: Final answer
    x = 244,161.61

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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.