Home / 272,405.28-408,606.56-70,001.20

Finding the Fourth Proportional to 272,405.28, 408,606.56 and 70,001.20

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Solution

The fourth proportional to 272,405.28, 408,606.56 and 70,001.20 is: 105,001.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,405.28 : 408,606.56 = 70,001.20 : x
  2. Step 2: Convert to fraction form
    272,405.28/408,606.56 = 70,001.20/x
  3. Step 3: Cross multiply
    272,405.28x = 408,606.56 × 70,001.20
  4. Step 4: Simplify right side
    272,405.28x = 28,602,949,527.87
  5. Step 5: Solve for x
    x = 28,602,949,527.87/272,405.28
  6. Step 6: Final answer
    x = 105,001.45

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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.