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Finding the Fourth Proportional to 379,627.70, 569,441.55 and 240,005.30

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Solution

The fourth proportional to 379,627.70, 569,441.55 and 240,005.30 is: 360,007.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,627.70 : 569,441.55 = 240,005.30 : x
  2. Step 2: Convert to fraction form
    379,627.70/569,441.55 = 240,005.30/x
  3. Step 3: Cross multiply
    379,627.70x = 569,441.55 × 240,005.30
  4. Step 4: Simplify right side
    379,627.70x = 136,668,990,040.22
  5. Step 5: Solve for x
    x = 136,668,990,040.22/379,627.70
  6. Step 6: Final answer
    x = 360,007.95

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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.