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Finding the Fourth Proportional to 230,955.48, 318,648.83 and 134,140.64

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Solution

The fourth proportional to 230,955.48, 318,648.83 and 134,140.64 is: 185,073.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,955.48 : 318,648.83 = 134,140.64 : x
  2. Step 2: Convert to fraction form
    230,955.48/318,648.83 = 134,140.64/x
  3. Step 3: Cross multiply
    230,955.48x = 318,648.83 × 134,140.64
  4. Step 4: Simplify right side
    230,955.48x = 42,743,755,727.50
  5. Step 5: Solve for x
    x = 42,743,755,727.50/230,955.48
  6. Step 6: Final answer
    x = 185,073.57

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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.