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Finding the Fourth Proportional to 252,489.53, 348,442.85 and 139,319.57

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Solution

The fourth proportional to 252,489.53, 348,442.85 and 139,319.57 is: 192,265.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,489.53 : 348,442.85 = 139,319.57 : x
  2. Step 2: Convert to fraction form
    252,489.53/348,442.85 = 139,319.57/x
  3. Step 3: Cross multiply
    252,489.53x = 348,442.85 × 139,319.57
  4. Step 4: Simplify right side
    252,489.53x = 48,544,908,031.57
  5. Step 5: Solve for x
    x = 48,544,908,031.57/252,489.53
  6. Step 6: Final answer
    x = 192,265.03

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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.