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Finding the Fourth Proportional to 615,052.20, 922,140.90 and 235,826.40

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Solution

The fourth proportional to 615,052.20, 922,140.90 and 235,826.40 is: 353,571.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,052.20 : 922,140.90 = 235,826.40 : x
  2. Step 2: Convert to fraction form
    615,052.20/922,140.90 = 235,826.40/x
  3. Step 3: Cross multiply
    615,052.20x = 922,140.90 × 235,826.40
  4. Step 4: Simplify right side
    615,052.20x = 217,465,168,739.76
  5. Step 5: Solve for x
    x = 217,465,168,739.76/615,052.20
  6. Step 6: Final answer
    x = 353,571.89

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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.