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Finding the Fourth Proportional to 615,607.40, 923,294.46 and 216,154.28

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Solution

The fourth proportional to 615,607.40, 923,294.46 and 216,154.28 is: 324,190.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,607.40 : 923,294.46 = 216,154.28 : x
  2. Step 2: Convert to fraction form
    615,607.40/923,294.46 = 216,154.28/x
  3. Step 3: Cross multiply
    615,607.40x = 923,294.46 × 216,154.28
  4. Step 4: Simplify right side
    615,607.40x = 199,574,049,229.29
  5. Step 5: Solve for x
    x = 199,574,049,229.29/615,607.40
  6. Step 6: Final answer
    x = 324,190.46

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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.