Home / 288,174.42-397,686.69-160,855.38

Finding the Fourth Proportional to 288,174.42, 397,686.69 and 160,855.38

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Solution

The fourth proportional to 288,174.42, 397,686.69 and 160,855.38 is: 221,983.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,174.42 : 397,686.69 = 160,855.38 : x
  2. Step 2: Convert to fraction form
    288,174.42/397,686.69 = 160,855.38/x
  3. Step 3: Cross multiply
    288,174.42x = 397,686.69 × 160,855.38
  4. Step 4: Simplify right side
    288,174.42x = 63,970,043,640.89
  5. Step 5: Solve for x
    x = 63,970,043,640.89/288,174.42
  6. Step 6: Final answer
    x = 221,983.77

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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.