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Finding the Fourth Proportional to 207,635.90, 311,599.65 and 89,392.10

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Solution

The fourth proportional to 207,635.90, 311,599.65 and 89,392.10 is: 134,150.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,635.90 : 311,599.65 = 89,392.10 : x
  2. Step 2: Convert to fraction form
    207,635.90/311,599.65 = 89,392.10/x
  3. Step 3: Cross multiply
    207,635.90x = 311,599.65 × 89,392.10
  4. Step 4: Simplify right side
    207,635.90x = 27,854,547,072.77
  5. Step 5: Solve for x
    x = 27,854,547,072.77/207,635.90
  6. Step 6: Final answer
    x = 134,150.92

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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.