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Finding the Fourth Proportional to 312,008.80, 430,535.10 and 176,034.82

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Solution

The fourth proportional to 312,008.80, 430,535.10 and 176,034.82 is: 242,907.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,008.80 : 430,535.10 = 176,034.82 : x
  2. Step 2: Convert to fraction form
    312,008.80/430,535.10 = 176,034.82/x
  3. Step 3: Cross multiply
    312,008.80x = 430,535.10 × 176,034.82
  4. Step 4: Simplify right side
    312,008.80x = 75,789,168,832.18
  5. Step 5: Solve for x
    x = 75,789,168,832.18/312,008.80
  6. Step 6: Final answer
    x = 242,907.15

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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.