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Finding the Fourth Proportional to 220,883.60, 330,547.80 and 202,221.20

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Solution

The fourth proportional to 220,883.60, 330,547.80 and 202,221.20 is: 302,619.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,883.60 : 330,547.80 = 202,221.20 : x
  2. Step 2: Convert to fraction form
    220,883.60/330,547.80 = 202,221.20/x
  3. Step 3: Cross multiply
    220,883.60x = 330,547.80 × 202,221.20
  4. Step 4: Simplify right side
    220,883.60x = 66,843,772,773.36
  5. Step 5: Solve for x
    x = 66,843,772,773.36/220,883.60
  6. Step 6: Final answer
    x = 302,619.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.