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Finding the Fourth Proportional to 218,615.92, 301,602.36 and 133,585.36

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Solution

The fourth proportional to 218,615.92, 301,602.36 and 133,585.36 is: 184,294.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,615.92 : 301,602.36 = 133,585.36 : x
  2. Step 2: Convert to fraction form
    218,615.92/301,602.36 = 133,585.36/x
  3. Step 3: Cross multiply
    218,615.92x = 301,602.36 × 133,585.36
  4. Step 4: Simplify right side
    218,615.92x = 40,289,659,837.45
  5. Step 5: Solve for x
    x = 40,289,659,837.45/218,615.92
  6. Step 6: Final answer
    x = 184,294.26

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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.