Home / 289,372.06-399,329.13-160,310.26

Finding the Fourth Proportional to 289,372.06, 399,329.13 and 160,310.26

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Solution

The fourth proportional to 289,372.06, 399,329.13 and 160,310.26 is: 221,225.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,372.06 : 399,329.13 = 160,310.26 : x
  2. Step 2: Convert to fraction form
    289,372.06/399,329.13 = 160,310.26/x
  3. Step 3: Cross multiply
    289,372.06x = 399,329.13 × 160,310.26
  4. Step 4: Simplify right side
    289,372.06x = 64,016,557,756.20
  5. Step 5: Solve for x
    x = 64,016,557,756.20/289,372.06
  6. Step 6: Final answer
    x = 221,225.77

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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.