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Finding the Fourth Proportional to 365,783.60, 547,606.20 and 260,807.60

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Solution

The fourth proportional to 365,783.60, 547,606.20 and 260,807.60 is: 390,449.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    365,783.60 : 547,606.20 = 260,807.60 : x
  2. Step 2: Convert to fraction form
    365,783.60/547,606.20 = 260,807.60/x
  3. Step 3: Cross multiply
    365,783.60x = 547,606.20 × 260,807.60
  4. Step 4: Simplify right side
    365,783.60x = 142,819,858,767.12
  5. Step 5: Solve for x
    x = 142,819,858,767.12/365,783.60
  6. Step 6: Final answer
    x = 390,449.05

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