Home / 458,743.19-688,114.77-143,227.13

Finding the Fourth Proportional to 458,743.19, 688,114.77 and 143,227.13

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Solution

The fourth proportional to 458,743.19, 688,114.77 and 143,227.13 is: 214,840.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    458,743.19 : 688,114.77 = 143,227.13 : x
  2. Step 2: Convert to fraction form
    458,743.19/688,114.77 = 143,227.13/x
  3. Step 3: Cross multiply
    458,743.19x = 688,114.77 × 143,227.13
  4. Step 4: Simplify right side
    458,743.19x = 98,556,700,177.14
  5. Step 5: Solve for x
    x = 98,556,700,177.14/458,743.19
  6. Step 6: Final answer
    x = 214,840.69

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Similar ratio
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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.