Home / 289,227.20-399,128.52-160,163.11

Finding the Fourth Proportional to 289,227.20, 399,128.52 and 160,163.11

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Solution

The fourth proportional to 289,227.20, 399,128.52 and 160,163.11 is: 221,022.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,227.20 : 399,128.52 = 160,163.11 : x
  2. Step 2: Convert to fraction form
    289,227.20/399,128.52 = 160,163.11/x
  3. Step 3: Cross multiply
    289,227.20x = 399,128.52 × 160,163.11
  4. Step 4: Simplify right side
    289,227.20x = 63,925,666,152.42
  5. Step 5: Solve for x
    x = 63,925,666,152.42/289,227.20
  6. Step 6: Final answer
    x = 221,022.32

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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.