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Finding the Fourth Proportional to 218,720.16, 301,833.76 and 118,118.16

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Solution

The fourth proportional to 218,720.16, 301,833.76 and 118,118.16 is: 163,003.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,720.16 : 301,833.76 = 118,118.16 : x
  2. Step 2: Convert to fraction form
    218,720.16/301,833.76 = 118,118.16/x
  3. Step 3: Cross multiply
    218,720.16x = 301,833.76 × 118,118.16
  4. Step 4: Simplify right side
    218,720.16x = 35,652,048,357.08
  5. Step 5: Solve for x
    x = 35,652,048,357.08/218,720.16
  6. Step 6: Final answer
    x = 163,003.03

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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.