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Finding the Fourth Proportional to 253,169.16, 349,372.86 and 145,700.04

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Solution

The fourth proportional to 253,169.16, 349,372.86 and 145,700.04 is: 201,065.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,169.16 : 349,372.86 = 145,700.04 : x
  2. Step 2: Convert to fraction form
    253,169.16/349,372.86 = 145,700.04/x
  3. Step 3: Cross multiply
    253,169.16x = 349,372.86 × 145,700.04
  4. Step 4: Simplify right side
    253,169.16x = 50,903,639,676.91
  5. Step 5: Solve for x
    x = 50,903,639,676.91/253,169.16
  6. Step 6: Final answer
    x = 201,065.72

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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.