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Finding the Fourth Proportional to 270,606.80, 405,967.80 and 83,637.20

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Solution

The fourth proportional to 270,606.80, 405,967.80 and 83,637.20 is: 125,473.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    270,606.80 : 405,967.80 = 83,637.20 : x
  2. Step 2: Convert to fraction form
    270,606.80/405,967.80 = 83,637.20/x
  3. Step 3: Cross multiply
    270,606.80x = 405,967.80 × 83,637.20
  4. Step 4: Simplify right side
    270,606.80x = 33,954,010,082.16
  5. Step 5: Solve for x
    x = 33,954,010,082.16/270,606.80
  6. Step 6: Final answer
    x = 125,473.60

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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.