Home / 252,919.68-349,036.20-139,749.72

Finding the Fourth Proportional to 252,919.68, 349,036.20 and 139,749.72

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Solution

The fourth proportional to 252,919.68, 349,036.20 and 139,749.72 is: 192,858.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,919.68 : 349,036.20 = 139,749.72 : x
  2. Step 2: Convert to fraction form
    252,919.68/349,036.20 = 139,749.72/x
  3. Step 3: Cross multiply
    252,919.68x = 349,036.20 × 139,749.72
  4. Step 4: Simplify right side
    252,919.68x = 48,777,711,219.86
  5. Step 5: Solve for x
    x = 48,777,711,219.86/252,919.68
  6. Step 6: Final answer
    x = 192,858.50

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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.