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Finding the Fourth Proportional to 359,401.80, 539,102.70 and 304,105.80

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Solution

The fourth proportional to 359,401.80, 539,102.70 and 304,105.80 is: 456,158.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,401.80 : 539,102.70 = 304,105.80 : x
  2. Step 2: Convert to fraction form
    359,401.80/539,102.70 = 304,105.80/x
  3. Step 3: Cross multiply
    359,401.80x = 539,102.70 × 304,105.80
  4. Step 4: Simplify right side
    359,401.80x = 163,944,257,865.66
  5. Step 5: Solve for x
    x = 163,944,257,865.66/359,401.80
  6. Step 6: Final answer
    x = 456,158.70

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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.