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Finding the Fourth Proportional to 385,513.95, 532,250.75 and 247,748.75

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Solution

The fourth proportional to 385,513.95, 532,250.75 and 247,748.75 is: 342,048.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    385,513.95 : 532,250.75 = 247,748.75 : x
  2. Step 2: Convert to fraction form
    385,513.95/532,250.75 = 247,748.75/x
  3. Step 3: Cross multiply
    385,513.95x = 532,250.75 × 247,748.75
  4. Step 4: Simplify right side
    385,513.95x = 131,864,457,999.06
  5. Step 5: Solve for x
    x = 131,864,457,999.06/385,513.95
  6. Step 6: Final answer
    x = 342,048.47

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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.