Home / 459,988.76-689,732.84-160,389.20

Finding the Fourth Proportional to 459,988.76, 689,732.84 and 160,389.20

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Solution

The fourth proportional to 459,988.76, 689,732.84 and 160,389.20 is: 240,496.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,988.76 : 689,732.84 = 160,389.20 : x
  2. Step 2: Convert to fraction form
    459,988.76/689,732.84 = 160,389.20/x
  3. Step 3: Cross multiply
    459,988.76x = 689,732.84 × 160,389.20
  4. Step 4: Simplify right side
    459,988.76x = 110,625,694,170.72
  5. Step 5: Solve for x
    x = 110,625,694,170.72/459,988.76
  6. Step 6: Final answer
    x = 240,496.52

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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.