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Finding the Fourth Proportional to 230,647.50, 318,293.55 and 124,663.50

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Solution

The fourth proportional to 230,647.50, 318,293.55 and 124,663.50 is: 172,035.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,647.50 : 318,293.55 = 124,663.50 : x
  2. Step 2: Convert to fraction form
    230,647.50/318,293.55 = 124,663.50/x
  3. Step 3: Cross multiply
    230,647.50x = 318,293.55 × 124,663.50
  4. Step 4: Simplify right side
    230,647.50x = 39,679,587,970.43
  5. Step 5: Solve for x
    x = 39,679,587,970.43/230,647.50
  6. Step 6: Final answer
    x = 172,035.63

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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.