Home / 388,572.72-582,938.66-163,933.20

Finding the Fourth Proportional to 388,572.72, 582,938.66 and 163,933.20

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Solution

The fourth proportional to 388,572.72, 582,938.66 and 163,933.20 is: 245,933.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,572.72 : 582,938.66 = 163,933.20 : x
  2. Step 2: Convert to fraction form
    388,572.72/582,938.66 = 163,933.20/x
  3. Step 3: Cross multiply
    388,572.72x = 582,938.66 × 163,933.20
  4. Step 4: Simplify right side
    388,572.72x = 95,562,999,937.51
  5. Step 5: Solve for x
    x = 95,562,999,937.51/388,572.72
  6. Step 6: Final answer
    x = 245,933.37

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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.