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Finding the Fourth Proportional to 230,385.48, 318,128.34 and 144,489.03

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Solution

The fourth proportional to 230,385.48, 318,128.34 and 144,489.03 is: 199,518.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,385.48 : 318,128.34 = 144,489.03 : x
  2. Step 2: Convert to fraction form
    230,385.48/318,128.34 = 144,489.03/x
  3. Step 3: Cross multiply
    230,385.48x = 318,128.34 × 144,489.03
  4. Step 4: Simplify right side
    230,385.48x = 45,966,055,262.11
  5. Step 5: Solve for x
    x = 45,966,055,262.11/230,385.48
  6. Step 6: Final answer
    x = 199,518.02

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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.