Home / 287,904.94-397,309.38-160,588.78

Finding the Fourth Proportional to 287,904.94, 397,309.38 and 160,588.78

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Solution

The fourth proportional to 287,904.94, 397,309.38 and 160,588.78 is: 221,612.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,904.94 : 397,309.38 = 160,588.78 : x
  2. Step 2: Convert to fraction form
    287,904.94/397,309.38 = 160,588.78/x
  3. Step 3: Cross multiply
    287,904.94x = 397,309.38 × 160,588.78
  4. Step 4: Simplify right side
    287,904.94x = 63,803,428,616.76
  5. Step 5: Solve for x
    x = 63,803,428,616.76/287,904.94
  6. Step 6: Final answer
    x = 221,612.83

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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.