Home / 217,514.90-326,391.23-84,400.38

Finding the Fourth Proportional to 217,514.90, 326,391.23 and 84,400.38

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Solution

The fourth proportional to 217,514.90, 326,391.23 and 84,400.38 is: 126,646.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    217,514.90 : 326,391.23 = 84,400.38 : x
  2. Step 2: Convert to fraction form
    217,514.90/326,391.23 = 84,400.38/x
  3. Step 3: Cross multiply
    217,514.90x = 326,391.23 × 84,400.38
  4. Step 4: Simplify right side
    217,514.90x = 27,547,543,840.67
  5. Step 5: Solve for x
    x = 27,547,543,840.67/217,514.90
  6. Step 6: Final answer
    x = 126,646.70

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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.