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Finding the Fourth Proportional to 250,263.42, 375,431.72 and 72,747.36

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Solution

The fourth proportional to 250,263.42, 375,431.72 and 72,747.36 is: 109,131.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,263.42 : 375,431.72 = 72,747.36 : x
  2. Step 2: Convert to fraction form
    250,263.42/375,431.72 = 72,747.36/x
  3. Step 3: Cross multiply
    250,263.42x = 375,431.72 × 72,747.36
  4. Step 4: Simplify right side
    250,263.42x = 27,311,666,490.26
  5. Step 5: Solve for x
    x = 27,311,666,490.26/250,263.42
  6. Step 6: Final answer
    x = 109,131.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.