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Finding the Fourth Proportional to 303,962.40, 456,202.80 and 135,741.60

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Solution

The fourth proportional to 303,962.40, 456,202.80 and 135,741.60 is: 203,728.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,962.40 : 456,202.80 = 135,741.60 : x
  2. Step 2: Convert to fraction form
    303,962.40/456,202.80 = 135,741.60/x
  3. Step 3: Cross multiply
    303,962.40x = 456,202.80 × 135,741.60
  4. Step 4: Simplify right side
    303,962.40x = 61,925,697,996.48
  5. Step 5: Solve for x
    x = 61,925,697,996.48/303,962.40
  6. Step 6: Final answer
    x = 203,728.15

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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.