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Finding the Fourth Proportional to 608,004.20, 912,104.32 and 187,279.68

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Solution

The fourth proportional to 608,004.20, 912,104.32 and 187,279.68 is: 280,949.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,004.20 : 912,104.32 = 187,279.68 : x
  2. Step 2: Convert to fraction form
    608,004.20/912,104.32 = 187,279.68/x
  3. Step 3: Cross multiply
    608,004.20x = 912,104.32 × 187,279.68
  4. Step 4: Simplify right side
    608,004.20x = 170,818,605,176.22
  5. Step 5: Solve for x
    x = 170,818,605,176.22/608,004.20
  6. Step 6: Final answer
    x = 280,949.71

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1.5x scale

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.