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Finding the Fourth Proportional to 220,509.44, 330,346.79 and 130,282.32

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Solution

The fourth proportional to 220,509.44, 330,346.79 and 130,282.32 is: 195,176.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,509.44 : 330,346.79 = 130,282.32 : x
  2. Step 2: Convert to fraction form
    220,509.44/330,346.79 = 130,282.32/x
  3. Step 3: Cross multiply
    220,509.44x = 330,346.79 × 130,282.32
  4. Step 4: Simplify right side
    220,509.44x = 43,038,346,531.46
  5. Step 5: Solve for x
    x = 43,038,346,531.46/220,509.44
  6. Step 6: Final answer
    x = 195,176.89

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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.