Home / 429,968.12-645,233.13-163,731.24

Finding the Fourth Proportional to 429,968.12, 645,233.13 and 163,731.24

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Solution

The fourth proportional to 429,968.12, 645,233.13 and 163,731.24 is: 245,703.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,968.12 : 645,233.13 = 163,731.24 : x
  2. Step 2: Convert to fraction form
    429,968.12/645,233.13 = 163,731.24/x
  3. Step 3: Cross multiply
    429,968.12x = 645,233.13 × 163,731.24
  4. Step 4: Simplify right side
    429,968.12x = 105,644,820,463.98
  5. Step 5: Solve for x
    x = 105,644,820,463.98/429,968.12
  6. Step 6: Final answer
    x = 245,703.85

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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.