Home / 287,726.05-397,232.27-255,806.65

Finding the Fourth Proportional to 287,726.05, 397,232.27 and 255,806.65

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Solution

The fourth proportional to 287,726.05, 397,232.27 and 255,806.65 is: 353,164.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,726.05 : 397,232.27 = 255,806.65 : x
  2. Step 2: Convert to fraction form
    287,726.05/397,232.27 = 255,806.65/x
  3. Step 3: Cross multiply
    287,726.05x = 397,232.27 × 255,806.65
  4. Step 4: Simplify right side
    287,726.05x = 101,614,656,260.60
  5. Step 5: Solve for x
    x = 101,614,656,260.60/287,726.05
  6. Step 6: Final answer
    x = 353,164.60

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1.5x scale

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.