Home / 257,962.21-386,801.23-138,159.56

Finding the Fourth Proportional to 257,962.21, 386,801.23 and 138,159.56

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Solution

The fourth proportional to 257,962.21, 386,801.23 and 138,159.56 is: 207,163.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,962.21 : 386,801.23 = 138,159.56 : x
  2. Step 2: Convert to fraction form
    257,962.21/386,801.23 = 138,159.56/x
  3. Step 3: Cross multiply
    257,962.21x = 386,801.23 × 138,159.56
  4. Step 4: Simplify right side
    257,962.21x = 53,440,287,053.46
  5. Step 5: Solve for x
    x = 53,440,287,053.46/257,962.21
  6. Step 6: Final answer
    x = 207,163.24

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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.