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Finding the Fourth Proportional to 253,134.16, 349,294.60 and 139,941.52

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Solution

The fourth proportional to 253,134.16, 349,294.60 and 139,941.52 is: 193,102.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,134.16 : 349,294.60 = 139,941.52 : x
  2. Step 2: Convert to fraction form
    253,134.16/349,294.60 = 139,941.52/x
  3. Step 3: Cross multiply
    253,134.16x = 349,294.60 × 139,941.52
  4. Step 4: Simplify right side
    253,134.16x = 48,880,817,251.79
  5. Step 5: Solve for x
    x = 48,880,817,251.79/253,134.16
  6. Step 6: Final answer
    x = 193,102.41

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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.