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Finding the Fourth Proportional to 230,499.75, 318,089.67 and 124,515.75

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Solution

The fourth proportional to 230,499.75, 318,089.67 and 124,515.75 is: 171,831.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,499.75 : 318,089.67 = 124,515.75 : x
  2. Step 2: Convert to fraction form
    230,499.75/318,089.67 = 124,515.75/x
  3. Step 3: Cross multiply
    230,499.75x = 318,089.67 × 124,515.75
  4. Step 4: Simplify right side
    230,499.75x = 39,607,173,827.30
  5. Step 5: Solve for x
    x = 39,607,173,827.30/230,499.75
  6. Step 6: Final answer
    x = 171,831.74

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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.