Home / 459,360.25-689,041.45-139,514.60

Finding the Fourth Proportional to 459,360.25, 689,041.45 and 139,514.60

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Solution

The fourth proportional to 459,360.25, 689,041.45 and 139,514.60 is: 209,272.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    459,360.25 : 689,041.45 = 139,514.60 : x
  2. Step 2: Convert to fraction form
    459,360.25/689,041.45 = 139,514.60/x
  3. Step 3: Cross multiply
    459,360.25x = 689,041.45 × 139,514.60
  4. Step 4: Simplify right side
    459,360.25x = 96,131,344,177.17
  5. Step 5: Solve for x
    x = 96,131,344,177.17/459,360.25
  6. Step 6: Final answer
    x = 209,272.23

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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.