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Finding the Fourth Proportional to 250,298.01, 345,408.39 and 135,574.47

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Solution

The fourth proportional to 250,298.01, 345,408.39 and 135,574.47 is: 187,091.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,298.01 : 345,408.39 = 135,574.47 : x
  2. Step 2: Convert to fraction form
    250,298.01/345,408.39 = 135,574.47/x
  3. Step 3: Cross multiply
    250,298.01x = 345,408.39 × 135,574.47
  4. Step 4: Simplify right side
    250,298.01x = 46,828,559,407.80
  5. Step 5: Solve for x
    x = 46,828,559,407.80/250,298.01
  6. Step 6: Final answer
    x = 187,091.22

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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.