Home / 205,953.40-308,930.10-72,832.60

Finding the Fourth Proportional to 205,953.40, 308,930.10 and 72,832.60

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Solution

The fourth proportional to 205,953.40, 308,930.10 and 72,832.60 is: 109,248.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,953.40 : 308,930.10 = 72,832.60 : x
  2. Step 2: Convert to fraction form
    205,953.40/308,930.10 = 72,832.60/x
  3. Step 3: Cross multiply
    205,953.40x = 308,930.10 × 72,832.60
  4. Step 4: Simplify right side
    205,953.40x = 22,500,182,401.26
  5. Step 5: Solve for x
    x = 22,500,182,401.26/205,953.40
  6. Step 6: Final answer
    x = 109,248.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.