Home / 205,533.72-308,341.89-72,508.23

Finding the Fourth Proportional to 205,533.72, 308,341.89 and 72,508.23

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Solution

The fourth proportional to 205,533.72, 308,341.89 and 72,508.23 is: 108,776.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,533.72 : 308,341.89 = 72,508.23 : x
  2. Step 2: Convert to fraction form
    205,533.72/308,341.89 = 72,508.23/x
  3. Step 3: Cross multiply
    205,533.72x = 308,341.89 × 72,508.23
  4. Step 4: Simplify right side
    205,533.72x = 22,357,324,678.75
  5. Step 5: Solve for x
    x = 22,357,324,678.75/205,533.72
  6. Step 6: Final answer
    x = 108,776.92

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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.