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Finding the Fourth Proportional to 253,034.08, 349,180.95 and 138,307.57

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Solution

The fourth proportional to 253,034.08, 349,180.95 and 138,307.57 is: 190,861.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,034.08 : 349,180.95 = 138,307.57 : x
  2. Step 2: Convert to fraction form
    253,034.08/349,180.95 = 138,307.57/x
  3. Step 3: Cross multiply
    253,034.08x = 349,180.95 × 138,307.57
  4. Step 4: Simplify right side
    253,034.08x = 48,294,368,684.79
  5. Step 5: Solve for x
    x = 48,294,368,684.79/253,034.08
  6. Step 6: Final answer
    x = 190,861.12

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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.