Home / 359,255.09-538,925.60-145,977.43

Finding the Fourth Proportional to 359,255.09, 538,925.60 and 145,977.43

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Solution

The fourth proportional to 359,255.09, 538,925.60 and 145,977.43 is: 218,983.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,255.09 : 538,925.60 = 145,977.43 : x
  2. Step 2: Convert to fraction form
    359,255.09/538,925.60 = 145,977.43/x
  3. Step 3: Cross multiply
    359,255.09x = 538,925.60 × 145,977.43
  4. Step 4: Simplify right side
    359,255.09x = 78,670,974,049.21
  5. Step 5: Solve for x
    x = 78,670,974,049.21/359,255.09
  6. Step 6: Final answer
    x = 218,983.60

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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.