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Finding the Fourth Proportional to 218,802.60, 301,947.12 and 118,200.60

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Solution

The fourth proportional to 218,802.60, 301,947.12 and 118,200.60 is: 163,116.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    218,802.60 : 301,947.12 = 118,200.60 : x
  2. Step 2: Convert to fraction form
    218,802.60/301,947.12 = 118,200.60/x
  3. Step 3: Cross multiply
    218,802.60x = 301,947.12 × 118,200.60
  4. Step 4: Simplify right side
    218,802.60x = 35,690,330,752.27
  5. Step 5: Solve for x
    x = 35,690,330,752.27/218,802.60
  6. Step 6: Final answer
    x = 163,116.58

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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.