Home / 272,981.12-409,277.80-104,359.36

Finding the Fourth Proportional to 272,981.12, 409,277.80 and 104,359.36

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Solution

The fourth proportional to 272,981.12, 409,277.80 and 104,359.36 is: 156,464.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,981.12 : 409,277.80 = 104,359.36 : x
  2. Step 2: Convert to fraction form
    272,981.12/409,277.80 = 104,359.36/x
  3. Step 3: Cross multiply
    272,981.12x = 409,277.80 × 104,359.36
  4. Step 4: Simplify right side
    272,981.12x = 42,711,969,270.21
  5. Step 5: Solve for x
    x = 42,711,969,270.21/272,981.12
  6. Step 6: Final answer
    x = 156,464.92

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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.