Home / 209,264.10-288,785.61-123,226.80

Finding the Fourth Proportional to 209,264.10, 288,785.61 and 123,226.80

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Solution

The fourth proportional to 209,264.10, 288,785.61 and 123,226.80 is: 170,053.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    209,264.10 : 288,785.61 = 123,226.80 : x
  2. Step 2: Convert to fraction form
    209,264.10/288,785.61 = 123,226.80/x
  3. Step 3: Cross multiply
    209,264.10x = 288,785.61 × 123,226.80
  4. Step 4: Simplify right side
    209,264.10x = 35,586,126,606.35
  5. Step 5: Solve for x
    x = 35,586,126,606.35/209,264.10
  6. Step 6: Final answer
    x = 170,053.66

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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.