Home / 287,904.96-397,309.38-160,588.80

Finding the Fourth Proportional to 287,904.96, 397,309.38 and 160,588.80

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Solution

The fourth proportional to 287,904.96, 397,309.38 and 160,588.80 is: 221,612.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,904.96 : 397,309.38 = 160,588.80 : x
  2. Step 2: Convert to fraction form
    287,904.96/397,309.38 = 160,588.80/x
  3. Step 3: Cross multiply
    287,904.96x = 397,309.38 × 160,588.80
  4. Step 4: Simplify right side
    287,904.96x = 63,803,436,562.94
  5. Step 5: Solve for x
    x = 63,803,436,562.94/287,904.96
  6. Step 6: Final answer
    x = 221,612.84

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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.