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Finding the Fourth Proportional to 207,762.10, 311,659.35 and 89,437.30

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Solution

The fourth proportional to 207,762.10, 311,659.35 and 89,437.30 is: 134,162.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,762.10 : 311,659.35 = 89,437.30 : x
  2. Step 2: Convert to fraction form
    207,762.10/311,659.35 = 89,437.30/x
  3. Step 3: Cross multiply
    207,762.10x = 311,659.35 × 89,437.30
  4. Step 4: Simplify right side
    207,762.10x = 27,873,970,783.76
  5. Step 5: Solve for x
    x = 27,873,970,783.76/207,762.10
  6. Step 6: Final answer
    x = 134,162.92

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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.