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Finding the Fourth Proportional to 230,545, 318,152.10 and 124,561

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Solution

The fourth proportional to 230,545, 318,152.10 and 124,561 is: 171,894.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,545 : 318,152.10 = 124,561 : x
  2. Step 2: Convert to fraction form
    230,545/318,152.10 = 124,561/x
  3. Step 3: Cross multiply
    230,545x = 318,152.10 × 124,561
  4. Step 4: Simplify right side
    230,545x = 39,629,343,728.10
  5. Step 5: Solve for x
    x = 39,629,343,728.10/230,545
  6. Step 6: Final answer
    x = 171,894.18

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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.