Home / 214,230.78-321,349.05-81,075.27

Finding the Fourth Proportional to 214,230.78, 321,349.05 and 81,075.27

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Solution

The fourth proportional to 214,230.78, 321,349.05 and 81,075.27 is: 121,613.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    214,230.78 : 321,349.05 = 81,075.27 : x
  2. Step 2: Convert to fraction form
    214,230.78/321,349.05 = 81,075.27/x
  3. Step 3: Cross multiply
    214,230.78x = 321,349.05 × 81,075.27
  4. Step 4: Simplify right side
    214,230.78x = 26,053,460,992.99
  5. Step 5: Solve for x
    x = 26,053,460,992.99/214,230.78
  6. Step 6: Final answer
    x = 121,613.99

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1.5x scale

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.