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Finding the Fourth Proportional to 253,749.59, 350,158.01 and 139,028.07

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Solution

The fourth proportional to 253,749.59, 350,158.01 and 139,028.07 is: 191,849.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,749.59 : 350,158.01 = 139,028.07 : x
  2. Step 2: Convert to fraction form
    253,749.59/350,158.01 = 139,028.07/x
  3. Step 3: Cross multiply
    253,749.59x = 350,158.01 × 139,028.07
  4. Step 4: Simplify right side
    253,749.59x = 48,681,791,630.20
  5. Step 5: Solve for x
    x = 48,681,791,630.20/253,749.59
  6. Step 6: Final answer
    x = 191,849.74

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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.