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Finding the Fourth Proportional to 253,915.68, 350,415.72 and 140,738.52

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Solution

The fourth proportional to 253,915.68, 350,415.72 and 140,738.52 is: 194,225.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,915.68 : 350,415.72 = 140,738.52 : x
  2. Step 2: Convert to fraction form
    253,915.68/350,415.72 = 140,738.52/x
  3. Step 3: Cross multiply
    253,915.68x = 350,415.72 × 140,738.52
  4. Step 4: Simplify right side
    253,915.68x = 49,316,989,817.53
  5. Step 5: Solve for x
    x = 49,316,989,817.53/253,915.68
  6. Step 6: Final answer
    x = 194,225.85

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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.