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Finding the Fourth Proportional to 213,249.80, 319,752.59 and 171,207.45

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Solution

The fourth proportional to 213,249.80, 319,752.59 and 171,207.45 is: 256,713.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    213,249.80 : 319,752.59 = 171,207.45 : x
  2. Step 2: Convert to fraction form
    213,249.80/319,752.59 = 171,207.45/x
  3. Step 3: Cross multiply
    213,249.80x = 319,752.59 × 171,207.45
  4. Step 4: Simplify right side
    213,249.80x = 54,744,024,708.76
  5. Step 5: Solve for x
    x = 54,744,024,708.76/213,249.80
  6. Step 6: Final answer
    x = 256,713.14

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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.