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Finding the Fourth Proportional to 252,915.68, 349,030.72 and 139,745.76

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Solution

The fourth proportional to 252,915.68, 349,030.72 and 139,745.76 is: 192,853.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,915.68 : 349,030.72 = 139,745.76 : x
  2. Step 2: Convert to fraction form
    252,915.68/349,030.72 = 139,745.76/x
  3. Step 3: Cross multiply
    252,915.68x = 349,030.72 × 139,745.76
  4. Step 4: Simplify right side
    252,915.68x = 48,775,563,229.75
  5. Step 5: Solve for x
    x = 48,775,563,229.75/252,915.68
  6. Step 6: Final answer
    x = 192,853.06

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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.