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Finding the Fourth Proportional to 615,362.94, 923,213.90 and 215,951.13

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Solution

The fourth proportional to 615,362.94, 923,213.90 and 215,951.13 is: 323,986.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,362.94 : 923,213.90 = 215,951.13 : x
  2. Step 2: Convert to fraction form
    615,362.94/923,213.90 = 215,951.13/x
  3. Step 3: Cross multiply
    615,362.94x = 923,213.90 × 215,951.13
  4. Step 4: Simplify right side
    615,362.94x = 199,369,085,476.59
  5. Step 5: Solve for x
    x = 199,369,085,476.59/615,362.94
  6. Step 6: Final answer
    x = 323,986.18

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1.5x scale

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.