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Finding the Fourth Proportional to 254,299.35, 350,937.55 and 139,588.71

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Solution

The fourth proportional to 254,299.35, 350,937.55 and 139,588.71 is: 192,634.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    254,299.35 : 350,937.55 = 139,588.71 : x
  2. Step 2: Convert to fraction form
    254,299.35/350,937.55 = 139,588.71/x
  3. Step 3: Cross multiply
    254,299.35x = 350,937.55 × 139,588.71
  4. Step 4: Simplify right side
    254,299.35x = 48,986,920,862.10
  5. Step 5: Solve for x
    x = 48,986,920,862.10/254,299.35
  6. Step 6: Final answer
    x = 192,634.87

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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.