Home / 287,686.93-397,178.06-255,767.49

Finding the Fourth Proportional to 287,686.93, 397,178.06 and 255,767.49

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Solution

The fourth proportional to 287,686.93, 397,178.06 and 255,767.49 is: 353,110.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,686.93 : 397,178.06 = 255,767.49 : x
  2. Step 2: Convert to fraction form
    287,686.93/397,178.06 = 255,767.49/x
  3. Step 3: Cross multiply
    287,686.93x = 397,178.06 × 255,767.49
  4. Step 4: Simplify right side
    287,686.93x = 101,585,235,489.27
  5. Step 5: Solve for x
    x = 101,585,235,489.27/287,686.93
  6. Step 6: Final answer
    x = 353,110.36

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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.