Home / 288,055.11-397,513.91-158,993.56

Finding the Fourth Proportional to 288,055.11, 397,513.91 and 158,993.56

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Solution

The fourth proportional to 288,055.11, 397,513.91 and 158,993.56 is: 219,409.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,055.11 : 397,513.91 = 158,993.56 : x
  2. Step 2: Convert to fraction form
    288,055.11/397,513.91 = 158,993.56/x
  3. Step 3: Cross multiply
    288,055.11x = 397,513.91 × 158,993.56
  4. Step 4: Simplify right side
    288,055.11x = 63,202,151,402.34
  5. Step 5: Solve for x
    x = 63,202,151,402.34/288,055.11
  6. Step 6: Final answer
    x = 219,409.93

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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.