Home / 429,768.32-644,932.20-163,531.04

Finding the Fourth Proportional to 429,768.32, 644,932.20 and 163,531.04

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Solution

The fourth proportional to 429,768.32, 644,932.20 and 163,531.04 is: 245,403.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,768.32 : 644,932.20 = 163,531.04 : x
  2. Step 2: Convert to fraction form
    429,768.32/644,932.20 = 163,531.04/x
  3. Step 3: Cross multiply
    429,768.32x = 644,932.20 × 163,531.04
  4. Step 4: Simplify right side
    429,768.32x = 105,466,433,395.49
  5. Step 5: Solve for x
    x = 105,466,433,395.49/429,768.32
  6. Step 6: Final answer
    x = 245,403.00

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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.