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Finding the Fourth Proportional to 615,902.40, 923,680.80 and 195,307.20

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Solution

The fourth proportional to 615,902.40, 923,680.80 and 195,307.20 is: 292,906.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    615,902.40 : 923,680.80 = 195,307.20 : x
  2. Step 2: Convert to fraction form
    615,902.40/923,680.80 = 195,307.20/x
  3. Step 3: Cross multiply
    615,902.40x = 923,680.80 × 195,307.20
  4. Step 4: Simplify right side
    615,902.40x = 180,401,510,741.76
  5. Step 5: Solve for x
    x = 180,401,510,741.76/615,902.40
  6. Step 6: Final answer
    x = 292,906.00

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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.