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Finding the Fourth Proportional to 359,259.20, 539,083.20 and 148,918.40

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Solution

The fourth proportional to 359,259.20, 539,083.20 and 148,918.40 is: 223,458.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,259.20 : 539,083.20 = 148,918.40 : x
  2. Step 2: Convert to fraction form
    359,259.20/539,083.20 = 148,918.40/x
  3. Step 3: Cross multiply
    359,259.20x = 539,083.20 × 148,918.40
  4. Step 4: Simplify right side
    359,259.20x = 80,279,407,610.88
  5. Step 5: Solve for x
    x = 80,279,407,610.88/359,259.20
  6. Step 6: Final answer
    x = 223,458.18

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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.