Home / 230,526.20-318,127.97-128,558.24

Finding the Fourth Proportional to 230,526.20, 318,127.97 and 128,558.24

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Solution

The fourth proportional to 230,526.20, 318,127.97 and 128,558.24 is: 177,411.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,526.20 : 318,127.97 = 128,558.24 : x
  2. Step 2: Convert to fraction form
    230,526.20/318,127.97 = 128,558.24/x
  3. Step 3: Cross multiply
    230,526.20x = 318,127.97 × 128,558.24
  4. Step 4: Simplify right side
    230,526.20x = 40,897,971,299.35
  5. Step 5: Solve for x
    x = 40,897,971,299.35/230,526.20
  6. Step 6: Final answer
    x = 177,411.38

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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.