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Finding the Fourth Proportional to 360,128.17, 540,219.59 and 107,388.88

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Solution

The fourth proportional to 360,128.17, 540,219.59 and 107,388.88 is: 161,091.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    360,128.17 : 540,219.59 = 107,388.88 : x
  2. Step 2: Convert to fraction form
    360,128.17/540,219.59 = 107,388.88/x
  3. Step 3: Cross multiply
    360,128.17x = 540,219.59 × 107,388.88
  4. Step 4: Simplify right side
    360,128.17x = 58,013,576,724.16
  5. Step 5: Solve for x
    x = 58,013,576,724.16/360,128.17
  6. Step 6: Final answer
    x = 161,091.47

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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.