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Finding the Fourth Proportional to 379,250.17, 568,798.26 and 139,281.60

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Solution

The fourth proportional to 379,250.17, 568,798.26 and 139,281.60 is: 208,894.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,250.17 : 568,798.26 = 139,281.60 : x
  2. Step 2: Convert to fraction form
    379,250.17/568,798.26 = 139,281.60/x
  3. Step 3: Cross multiply
    379,250.17x = 568,798.26 × 139,281.60
  4. Step 4: Simplify right side
    379,250.17x = 79,223,128,900.61
  5. Step 5: Solve for x
    x = 79,223,128,900.61/379,250.17
  6. Step 6: Final answer
    x = 208,894.12

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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.