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Finding the Fourth Proportional to 270,330.60, 405,557.48 and 143,904.22

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Solution

The fourth proportional to 270,330.60, 405,557.48 and 143,904.22 is: 215,889.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,330.60 : 405,557.48 = 143,904.22 : x
  2. Step 2: Convert to fraction form
    270,330.60/405,557.48 = 143,904.22/x
  3. Step 3: Cross multiply
    270,330.60x = 405,557.48 × 143,904.22
  4. Step 4: Simplify right side
    270,330.60x = 58,361,432,824.57
  5. Step 5: Solve for x
    x = 58,361,432,824.57/270,330.60
  6. Step 6: Final answer
    x = 215,889.11

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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.