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Finding the Fourth Proportional to 230,752, 318,438.72 and 124,768

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Solution

The fourth proportional to 230,752, 318,438.72 and 124,768 is: 172,180.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,752 : 318,438.72 = 124,768 : x
  2. Step 2: Convert to fraction form
    230,752/318,438.72 = 124,768/x
  3. Step 3: Cross multiply
    230,752x = 318,438.72 × 124,768
  4. Step 4: Simplify right side
    230,752x = 39,730,962,216.96
  5. Step 5: Solve for x
    x = 39,730,962,216.96/230,752
  6. Step 6: Final answer
    x = 172,180.36

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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.