Home / 216,663.03-324,818.47-90,397.39

Finding the Fourth Proportional to 216,663.03, 324,818.47 and 90,397.39

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Solution

The fourth proportional to 216,663.03, 324,818.47 and 90,397.39 is: 135,522.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,663.03 : 324,818.47 = 90,397.39 : x
  2. Step 2: Convert to fraction form
    216,663.03/324,818.47 = 90,397.39/x
  3. Step 3: Cross multiply
    216,663.03x = 324,818.47 × 90,397.39
  4. Step 4: Simplify right side
    216,663.03x = 29,362,741,911.79
  5. Step 5: Solve for x
    x = 29,362,741,911.79/216,663.03
  6. Step 6: Final answer
    x = 135,522.62

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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.