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Finding the Fourth Proportional to 432,185.80, 648,278.72 and 116,642.20

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Solution

The fourth proportional to 432,185.80, 648,278.72 and 116,642.20 is: 174,963.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,185.80 : 648,278.72 = 116,642.20 : x
  2. Step 2: Convert to fraction form
    432,185.80/648,278.72 = 116,642.20/x
  3. Step 3: Cross multiply
    432,185.80x = 648,278.72 × 116,642.20
  4. Step 4: Simplify right side
    432,185.80x = 75,616,656,113.98
  5. Step 5: Solve for x
    x = 75,616,656,113.98/432,185.80
  6. Step 6: Final answer
    x = 174,963.31

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1.5x scale

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.