Home / 430,057.47-645,010.77-163,833.96

Finding the Fourth Proportional to 430,057.47, 645,010.77 and 163,833.96

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Solution

The fourth proportional to 430,057.47, 645,010.77 and 163,833.96 is: 245,722.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,057.47 : 645,010.77 = 163,833.96 : x
  2. Step 2: Convert to fraction form
    430,057.47/645,010.77 = 163,833.96/x
  3. Step 3: Cross multiply
    430,057.47x = 645,010.77 × 163,833.96
  4. Step 4: Simplify right side
    430,057.47x = 105,674,668,691.75
  5. Step 5: Solve for x
    x = 105,674,668,691.75/430,057.47
  6. Step 6: Final answer
    x = 245,722.20

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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.