Home / 289,462.08-399,464.88-162,134.40

Finding the Fourth Proportional to 289,462.08, 399,464.88 and 162,134.40

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Solution

The fourth proportional to 289,462.08, 399,464.88 and 162,134.40 is: 223,749.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,462.08 : 399,464.88 = 162,134.40 : x
  2. Step 2: Convert to fraction form
    289,462.08/399,464.88 = 162,134.40/x
  3. Step 3: Cross multiply
    289,462.08x = 399,464.88 × 162,134.40
  4. Step 4: Simplify right side
    289,462.08x = 64,766,998,639.87
  5. Step 5: Solve for x
    x = 64,766,998,639.87/289,462.08
  6. Step 6: Final answer
    x = 223,749.51

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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.