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Finding the Fourth Proportional to 230,980.53, 318,663.68 and 135,452.37

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Solution

The fourth proportional to 230,980.53, 318,663.68 and 135,452.37 is: 186,871.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,980.53 : 318,663.68 = 135,452.37 : x
  2. Step 2: Convert to fraction form
    230,980.53/318,663.68 = 135,452.37/x
  3. Step 3: Cross multiply
    230,980.53x = 318,663.68 × 135,452.37
  4. Step 4: Simplify right side
    230,980.53x = 43,163,750,011.66
  5. Step 5: Solve for x
    x = 43,163,750,011.66/230,980.53
  6. Step 6: Final answer
    x = 186,871.81

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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.