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Finding the Fourth Proportional to 150,322.48, 207,165.12 and 123,307.54

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Solution

The fourth proportional to 150,322.48, 207,165.12 and 123,307.54 is: 169,934.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    150,322.48 : 207,165.12 = 123,307.54 : x
  2. Step 2: Convert to fraction form
    150,322.48/207,165.12 = 123,307.54/x
  3. Step 3: Cross multiply
    150,322.48x = 207,165.12 × 123,307.54
  4. Step 4: Simplify right side
    150,322.48x = 25,545,021,321.00
  5. Step 5: Solve for x
    x = 25,545,021,321.00/150,322.48
  6. Step 6: Final answer
    x = 169,934.80

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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.