Home / 287,973.40-431,960.10-162,002.20

Finding the Fourth Proportional to 287,973.40, 431,960.10 and 162,002.20

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Solution

The fourth proportional to 287,973.40, 431,960.10 and 162,002.20 is: 243,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,973.40 : 431,960.10 = 162,002.20 : x
  2. Step 2: Convert to fraction form
    287,973.40/431,960.10 = 162,002.20/x
  3. Step 3: Cross multiply
    287,973.40x = 431,960.10 × 162,002.20
  4. Step 4: Simplify right side
    287,973.40x = 69,978,486,512.22
  5. Step 5: Solve for x
    x = 69,978,486,512.22/287,973.40
  6. Step 6: Final answer
    x = 243,003.30

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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.