Home / 459,354.24-689,031.36-143,835.75

Finding the Fourth Proportional to 459,354.24, 689,031.36 and 143,835.75

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Solution

The fourth proportional to 459,354.24, 689,031.36 and 143,835.75 is: 215,753.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,354.24 : 689,031.36 = 143,835.75 : x
  2. Step 2: Convert to fraction form
    459,354.24/689,031.36 = 143,835.75/x
  3. Step 3: Cross multiply
    459,354.24x = 689,031.36 × 143,835.75
  4. Step 4: Simplify right side
    459,354.24x = 99,107,342,439.12
  5. Step 5: Solve for x
    x = 99,107,342,439.12/459,354.24
  6. Step 6: Final answer
    x = 215,753.63

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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.