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Finding the Fourth Proportional to 349,843.80, 525,024.90 and 139,632.60

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Solution

The fourth proportional to 349,843.80, 525,024.90 and 139,632.60 is: 209,552.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    349,843.80 : 525,024.90 = 139,632.60 : x
  2. Step 2: Convert to fraction form
    349,843.80/525,024.90 = 139,632.60/x
  3. Step 3: Cross multiply
    349,843.80x = 525,024.90 × 139,632.60
  4. Step 4: Simplify right side
    349,843.80x = 73,310,591,851.74
  5. Step 5: Solve for x
    x = 73,310,591,851.74/349,843.80
  6. Step 6: Final answer
    x = 209,552.35

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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.