Home / 205,009.20-307,513.80-181,508.40

Finding the Fourth Proportional to 205,009.20, 307,513.80 and 181,508.40

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Solution

The fourth proportional to 205,009.20, 307,513.80 and 181,508.40 is: 272,262.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,009.20 : 307,513.80 = 181,508.40 : x
  2. Step 2: Convert to fraction form
    205,009.20/307,513.80 = 181,508.40/x
  3. Step 3: Cross multiply
    205,009.20x = 307,513.80 × 181,508.40
  4. Step 4: Simplify right side
    205,009.20x = 55,816,337,815.92
  5. Step 5: Solve for x
    x = 55,816,337,815.92/205,009.20
  6. Step 6: Final answer
    x = 272,262.60

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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.