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Finding the Fourth Proportional to 252,697.16, 348,720.90 and 139,519.10

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Solution

The fourth proportional to 252,697.16, 348,720.90 and 139,519.10 is: 192,535.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,697.16 : 348,720.90 = 139,519.10 : x
  2. Step 2: Convert to fraction form
    252,697.16/348,720.90 = 139,519.10/x
  3. Step 3: Cross multiply
    252,697.16x = 348,720.90 × 139,519.10
  4. Step 4: Simplify right side
    252,697.16x = 48,653,226,119.19
  5. Step 5: Solve for x
    x = 48,653,226,119.19/252,697.16
  6. Step 6: Final answer
    x = 192,535.71

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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.