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Finding the Fourth Proportional to 615,199.58, 922,235.61 and 215,622.53

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Solution

The fourth proportional to 615,199.58, 922,235.61 and 215,622.53 is: 323,236.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,199.58 : 922,235.61 = 215,622.53 : x
  2. Step 2: Convert to fraction form
    615,199.58/922,235.61 = 215,622.53/x
  3. Step 3: Cross multiply
    615,199.58x = 922,235.61 × 215,622.53
  4. Step 4: Simplify right side
    615,199.58x = 198,854,775,484.29
  5. Step 5: Solve for x
    x = 198,854,775,484.29/615,199.58
  6. Step 6: Final answer
    x = 323,236.20

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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.