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Finding the Fourth Proportional to 359,287.67, 539,048.15 and 172,313.75

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Solution

The fourth proportional to 359,287.67, 539,048.15 and 172,313.75 is: 258,526.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,287.67 : 539,048.15 = 172,313.75 : x
  2. Step 2: Convert to fraction form
    359,287.67/539,048.15 = 172,313.75/x
  3. Step 3: Cross multiply
    359,287.67x = 539,048.15 × 172,313.75
  4. Step 4: Simplify right side
    359,287.67x = 92,885,408,157.06
  5. Step 5: Solve for x
    x = 92,885,408,157.06/359,287.67
  6. Step 6: Final answer
    x = 258,526.57

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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.