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Finding the Fourth Proportional to 613,201.60, 919,802.40 and 239,224.60

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Solution

The fourth proportional to 613,201.60, 919,802.40 and 239,224.60 is: 358,836.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    613,201.60 : 919,802.40 = 239,224.60 : x
  2. Step 2: Convert to fraction form
    613,201.60/919,802.40 = 239,224.60/x
  3. Step 3: Cross multiply
    613,201.60x = 919,802.40 × 239,224.60
  4. Step 4: Simplify right side
    613,201.60x = 220,039,361,219.04
  5. Step 5: Solve for x
    x = 220,039,361,219.04/613,201.60
  6. Step 6: Final answer
    x = 358,836.90

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Similar ratio
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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.