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Finding the Fourth Proportional to 359,280, 538,917.84 and 93,039.84

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Solution

The fourth proportional to 359,280, 538,917.84 and 93,039.84 is: 139,559.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    359,280 : 538,917.84 = 93,039.84 : x
  2. Step 2: Convert to fraction form
    359,280/538,917.84 = 93,039.84/x
  3. Step 3: Cross multiply
    359,280x = 538,917.84 × 93,039.84
  4. Step 4: Simplify right side
    359,280x = 50,140,829,606.75
  5. Step 5: Solve for x
    x = 50,140,829,606.75/359,280
  6. Step 6: Final answer
    x = 139,559.20

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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.