Home / 465,273.60-642,242.55-281,521.64

Finding the Fourth Proportional to 465,273.60, 642,242.55 and 281,521.64

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Solution

The fourth proportional to 465,273.60, 642,242.55 and 281,521.64 is: 388,599.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    465,273.60 : 642,242.55 = 281,521.64 : x
  2. Step 2: Convert to fraction form
    465,273.60/642,242.55 = 281,521.64/x
  3. Step 3: Cross multiply
    465,273.60x = 642,242.55 × 281,521.64
  4. Step 4: Simplify right side
    465,273.60x = 180,805,177,559.39
  5. Step 5: Solve for x
    x = 180,805,177,559.39/465,273.60
  6. Step 6: Final answer
    x = 388,599.69

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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.