Home / 459,970.12-689,189.66-160,285.52

Finding the Fourth Proportional to 459,970.12, 689,189.66 and 160,285.52

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Solution

The fourth proportional to 459,970.12, 689,189.66 and 160,285.52 is: 240,161.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,970.12 : 689,189.66 = 160,285.52 : x
  2. Step 2: Convert to fraction form
    459,970.12/689,189.66 = 160,285.52/x
  3. Step 3: Cross multiply
    459,970.12x = 689,189.66 × 160,285.52
  4. Step 4: Simplify right side
    459,970.12x = 110,467,123,031.72
  5. Step 5: Solve for x
    x = 110,467,123,031.72/459,970.12
  6. Step 6: Final answer
    x = 240,161.52

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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.