Home / 145,471.36-218,207.05-40,290.33

Finding the Fourth Proportional to 145,471.36, 218,207.05 and 40,290.33

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Solution

The fourth proportional to 145,471.36, 218,207.05 and 40,290.33 is: 60,435.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    145,471.36 : 218,207.05 = 40,290.33 : x
  2. Step 2: Convert to fraction form
    145,471.36/218,207.05 = 40,290.33/x
  3. Step 3: Cross multiply
    145,471.36x = 218,207.05 × 40,290.33
  4. Step 4: Simplify right side
    145,471.36x = 8,791,633,542.96
  5. Step 5: Solve for x
    x = 8,791,633,542.96/145,471.36
  6. Step 6: Final answer
    x = 60,435.49

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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.