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Finding the Fourth Proportional to 269,991.40, 404,987.10 and 130,023.40

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Solution

The fourth proportional to 269,991.40, 404,987.10 and 130,023.40 is: 195,035.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    269,991.40 : 404,987.10 = 130,023.40 : x
  2. Step 2: Convert to fraction form
    269,991.40/404,987.10 = 130,023.40/x
  3. Step 3: Cross multiply
    269,991.40x = 404,987.10 × 130,023.40
  4. Step 4: Simplify right side
    269,991.40x = 52,657,799,698.14
  5. Step 5: Solve for x
    x = 52,657,799,698.14/269,991.40
  6. Step 6: Final answer
    x = 195,035.10

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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.