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Finding the Fourth Proportional to 218,911.62, 302,098.26 and 118,309.62

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Solution

The fourth proportional to 218,911.62, 302,098.26 and 118,309.62 is: 163,267.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,911.62 : 302,098.26 = 118,309.62 : x
  2. Step 2: Convert to fraction form
    218,911.62/302,098.26 = 118,309.62/x
  3. Step 3: Cross multiply
    218,911.62x = 302,098.26 × 118,309.62
  4. Step 4: Simplify right side
    218,911.62x = 35,741,130,343.26
  5. Step 5: Solve for x
    x = 35,741,130,343.26/218,911.62
  6. Step 6: Final answer
    x = 163,267.40

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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.