Home / 429,980.16-645,251.16-163,743.24

Finding the Fourth Proportional to 429,980.16, 645,251.16 and 163,743.24

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Solution

The fourth proportional to 429,980.16, 645,251.16 and 163,743.24 is: 245,721.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,980.16 : 645,251.16 = 163,743.24 : x
  2. Step 2: Convert to fraction form
    429,980.16/645,251.16 = 163,743.24/x
  3. Step 3: Cross multiply
    429,980.16x = 645,251.16 × 163,743.24
  4. Step 4: Simplify right side
    429,980.16x = 105,655,515,552.16
  5. Step 5: Solve for x
    x = 105,655,515,552.16/429,980.16
  6. Step 6: Final answer
    x = 245,721.84

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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.