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Finding the Fourth Proportional to 608,381.92, 912,671.29 and 253,431.82

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Solution

The fourth proportional to 608,381.92, 912,671.29 and 253,431.82 is: 380,188.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    608,381.92 : 912,671.29 = 253,431.82 : x
  2. Step 2: Convert to fraction form
    608,381.92/912,671.29 = 253,431.82/x
  3. Step 3: Cross multiply
    608,381.92x = 912,671.29 × 253,431.82
  4. Step 4: Simplify right side
    608,381.92x = 231,299,941,523.09
  5. Step 5: Solve for x
    x = 231,299,941,523.09/608,381.92
  6. Step 6: Final answer
    x = 380,188.72

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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.