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Finding the Fourth Proportional to 216,918.96, 299,365.44 and 159,819.13

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Solution

The fourth proportional to 216,918.96, 299,365.44 and 159,819.13 is: 220,563.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,918.96 : 299,365.44 = 159,819.13 : x
  2. Step 2: Convert to fraction form
    216,918.96/299,365.44 = 159,819.13/x
  3. Step 3: Cross multiply
    216,918.96x = 299,365.44 × 159,819.13
  4. Step 4: Simplify right side
    216,918.96x = 47,844,323,612.30
  5. Step 5: Solve for x
    x = 47,844,323,612.30/216,918.96
  6. Step 6: Final answer
    x = 220,563.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.