Home / 459,659.28-689,491.85-160,145.45

Finding the Fourth Proportional to 459,659.28, 689,491.85 and 160,145.45

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Solution

The fourth proportional to 459,659.28, 689,491.85 and 160,145.45 is: 240,219.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,659.28 : 689,491.85 = 160,145.45 : x
  2. Step 2: Convert to fraction form
    459,659.28/689,491.85 = 160,145.45/x
  3. Step 3: Cross multiply
    459,659.28x = 689,491.85 × 160,145.45
  4. Step 4: Simplify right side
    459,659.28x = 110,418,978,341.40
  5. Step 5: Solve for x
    x = 110,418,978,341.40/459,659.28
  6. Step 6: Final answer
    x = 240,219.19

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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.