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Finding the Fourth Proportional to 615,032.70, 922,111.65 and 235,806.90

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Solution

The fourth proportional to 615,032.70, 922,111.65 and 235,806.90 is: 353,542.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,032.70 : 922,111.65 = 235,806.90 : x
  2. Step 2: Convert to fraction form
    615,032.70/922,111.65 = 235,806.90/x
  3. Step 3: Cross multiply
    615,032.70x = 922,111.65 × 235,806.90
  4. Step 4: Simplify right side
    615,032.70x = 217,440,289,640.39
  5. Step 5: Solve for x
    x = 217,440,289,640.39/615,032.70
  6. Step 6: Final answer
    x = 353,542.65

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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.