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Finding the Fourth Proportional to 230,732, 318,410.16 and 124,748

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Solution

The fourth proportional to 230,732, 318,410.16 and 124,748 is: 172,152.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,732 : 318,410.16 = 124,748 : x
  2. Step 2: Convert to fraction form
    230,732/318,410.16 = 124,748/x
  3. Step 3: Cross multiply
    230,732x = 318,410.16 × 124,748
  4. Step 4: Simplify right side
    230,732x = 39,721,030,639.68
  5. Step 5: Solve for x
    x = 39,721,030,639.68/230,732
  6. Step 6: Final answer
    x = 172,152.24

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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.