Home / 226,349.51-312,370.76-135,720.23

Finding the Fourth Proportional to 226,349.51, 312,370.76 and 135,720.23

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Solution

The fourth proportional to 226,349.51, 312,370.76 and 135,720.23 is: 187,298.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    226,349.51 : 312,370.76 = 135,720.23 : x
  2. Step 2: Convert to fraction form
    226,349.51/312,370.76 = 135,720.23/x
  3. Step 3: Cross multiply
    226,349.51x = 312,370.76 × 135,720.23
  4. Step 4: Simplify right side
    226,349.51x = 42,395,030,169.92
  5. Step 5: Solve for x
    x = 42,395,030,169.92/226,349.51
  6. Step 6: Final answer
    x = 187,298.97

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.