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Finding the Fourth Proportional to 230,955.58, 318,649.05 and 134,140.77

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Solution

The fourth proportional to 230,955.58, 318,649.05 and 134,140.77 is: 185,073.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,955.58 : 318,649.05 = 134,140.77 : x
  2. Step 2: Convert to fraction form
    230,955.58/318,649.05 = 134,140.77/x
  3. Step 3: Cross multiply
    230,955.58x = 318,649.05 × 134,140.77
  4. Step 4: Simplify right side
    230,955.58x = 42,743,828,926.77
  5. Step 5: Solve for x
    x = 42,743,828,926.77/230,955.58
  6. Step 6: Final answer
    x = 185,073.81

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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.