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Finding the Fourth Proportional to 615,183.08, 922,210.86 and 215,606.04

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Solution

The fourth proportional to 615,183.08, 922,210.86 and 215,606.04 is: 323,211.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,183.08 : 922,210.86 = 215,606.04 : x
  2. Step 2: Convert to fraction form
    615,183.08/922,210.86 = 215,606.04/x
  3. Step 3: Cross multiply
    615,183.08x = 922,210.86 × 215,606.04
  4. Step 4: Simplify right side
    615,183.08x = 198,834,231,569.59
  5. Step 5: Solve for x
    x = 198,834,231,569.59/615,183.08
  6. Step 6: Final answer
    x = 323,211.48

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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.