Home / 257,849.40-386,774.10-170,297.40

Finding the Fourth Proportional to 257,849.40, 386,774.10 and 170,297.40

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Solution

The fourth proportional to 257,849.40, 386,774.10 and 170,297.40 is: 255,446.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,849.40 : 386,774.10 = 170,297.40 : x
  2. Step 2: Convert to fraction form
    257,849.40/386,774.10 = 170,297.40/x
  3. Step 3: Cross multiply
    257,849.40x = 386,774.10 × 170,297.40
  4. Step 4: Simplify right side
    257,849.40x = 65,866,623,617.34
  5. Step 5: Solve for x
    x = 65,866,623,617.34/257,849.40
  6. Step 6: Final answer
    x = 255,446.10

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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.