Home / 430,159.26-644,861.62-163,742.57

Finding the Fourth Proportional to 430,159.26, 644,861.62 and 163,742.57

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Solution

The fourth proportional to 430,159.26, 644,861.62 and 163,742.57 is: 245,470.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    430,159.26 : 644,861.62 = 163,742.57 : x
  2. Step 2: Convert to fraction form
    430,159.26/644,861.62 = 163,742.57/x
  3. Step 3: Cross multiply
    430,159.26x = 644,861.62 × 163,742.57
  4. Step 4: Simplify right side
    430,159.26x = 105,591,298,953.16
  5. Step 5: Solve for x
    x = 105,591,298,953.16/430,159.26
  6. Step 6: Final answer
    x = 245,470.25

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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.