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Finding the Fourth Proportional to 500,086.78, 750,154.34 and 163,126.78

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Solution

The fourth proportional to 500,086.78, 750,154.34 and 163,126.78 is: 244,698.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    500,086.78 : 750,154.34 = 163,126.78 : x
  2. Step 2: Convert to fraction form
    500,086.78/750,154.34 = 163,126.78/x
  3. Step 3: Cross multiply
    500,086.78x = 750,154.34 × 163,126.78
  4. Step 4: Simplify right side
    500,086.78x = 122,370,261,987.23
  5. Step 5: Solve for x
    x = 122,370,261,987.23/500,086.78
  6. Step 6: Final answer
    x = 244,698.05

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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.