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Finding the Fourth Proportional to 385,513.45, 532,250.06 and 247,748.24

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Solution

The fourth proportional to 385,513.45, 532,250.06 and 247,748.24 is: 342,047.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,513.45 : 532,250.06 = 247,748.24 : x
  2. Step 2: Convert to fraction form
    385,513.45/532,250.06 = 247,748.24/x
  3. Step 3: Cross multiply
    385,513.45x = 532,250.06 × 247,748.24
  4. Step 4: Simplify right side
    385,513.45x = 131,864,015,696.78
  5. Step 5: Solve for x
    x = 131,864,015,696.78/385,513.45
  6. Step 6: Final answer
    x = 342,047.77

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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.