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Finding the Fourth Proportional to 164,840.44, 227,479.80 and 89,389

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Solution

The fourth proportional to 164,840.44, 227,479.80 and 89,389 is: 123,356.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    164,840.44 : 227,479.80 = 89,389 : x
  2. Step 2: Convert to fraction form
    164,840.44/227,479.80 = 89,389/x
  3. Step 3: Cross multiply
    164,840.44x = 227,479.80 × 89,389
  4. Step 4: Simplify right side
    164,840.44x = 20,334,191,842.20
  5. Step 5: Solve for x
    x = 20,334,191,842.20/164,840.44
  6. Step 6: Final answer
    x = 123,356.82

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.