Home / 459,975.12-689,965.92-160,454.40

Finding the Fourth Proportional to 459,975.12, 689,965.92 and 160,454.40

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Solution

The fourth proportional to 459,975.12, 689,965.92 and 160,454.40 is: 240,682.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,975.12 : 689,965.92 = 160,454.40 : x
  2. Step 2: Convert to fraction form
    459,975.12/689,965.92 = 160,454.40/x
  3. Step 3: Cross multiply
    459,975.12x = 689,965.92 × 160,454.40
  4. Step 4: Simplify right side
    459,975.12x = 110,708,067,714.05
  5. Step 5: Solve for x
    x = 110,708,067,714.05/459,975.12
  6. Step 6: Final answer
    x = 240,682.73

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.