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Finding the Fourth Proportional to 207,097.04, 310,737.72 and 108,578

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Solution

The fourth proportional to 207,097.04, 310,737.72 and 108,578 is: 162,915.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,097.04 : 310,737.72 = 108,578 : x
  2. Step 2: Convert to fraction form
    207,097.04/310,737.72 = 108,578/x
  3. Step 3: Cross multiply
    207,097.04x = 310,737.72 × 108,578
  4. Step 4: Simplify right side
    207,097.04x = 33,739,280,162.16
  5. Step 5: Solve for x
    x = 33,739,280,162.16/207,097.04
  6. Step 6: Final answer
    x = 162,915.32

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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.