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Finding the Fourth Proportional to 359,885.38, 539,772.71 and 120,003.45

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Solution

The fourth proportional to 359,885.38, 539,772.71 and 120,003.45 is: 179,986.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,885.38 : 539,772.71 = 120,003.45 : x
  2. Step 2: Convert to fraction form
    359,885.38/539,772.71 = 120,003.45/x
  3. Step 3: Cross multiply
    359,885.38x = 539,772.71 × 120,003.45
  4. Step 4: Simplify right side
    359,885.38x = 64,774,586,984.81
  5. Step 5: Solve for x
    x = 64,774,586,984.81/359,885.38
  6. Step 6: Final answer
    x = 179,986.71

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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.