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Finding the Fourth Proportional to 359,900.57, 539,795.49 and 120,018.66

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Solution

The fourth proportional to 359,900.57, 539,795.49 and 120,018.66 is: 180,009.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,900.57 : 539,795.49 = 120,018.66 : x
  2. Step 2: Convert to fraction form
    359,900.57/539,795.49 = 120,018.66/x
  3. Step 3: Cross multiply
    359,900.57x = 539,795.49 × 120,018.66
  4. Step 4: Simplify right side
    359,900.57x = 64,785,532,620.99
  5. Step 5: Solve for x
    x = 64,785,532,620.99/359,900.57
  6. Step 6: Final answer
    x = 180,009.53

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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.