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Finding the Fourth Proportional to 253,179.84, 349,422.72 and 145,747.20

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Solution

The fourth proportional to 253,179.84, 349,422.72 and 145,747.20 is: 201,151.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,179.84 : 349,422.72 = 145,747.20 : x
  2. Step 2: Convert to fraction form
    253,179.84/349,422.72 = 145,747.20/x
  3. Step 3: Cross multiply
    253,179.84x = 349,422.72 × 145,747.20
  4. Step 4: Simplify right side
    253,179.84x = 50,927,383,056.38
  5. Step 5: Solve for x
    x = 50,927,383,056.38/253,179.84
  6. Step 6: Final answer
    x = 201,151.02

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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.