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Finding the Fourth Proportional to 353,545.60, 529,022.40 and 260,233.60

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Solution

The fourth proportional to 353,545.60, 529,022.40 and 260,233.60 is: 389,396.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,545.60 : 529,022.40 = 260,233.60 : x
  2. Step 2: Convert to fraction form
    353,545.60/529,022.40 = 260,233.60/x
  3. Step 3: Cross multiply
    353,545.60x = 529,022.40 × 260,233.60
  4. Step 4: Simplify right side
    353,545.60x = 137,669,403,632.64
  5. Step 5: Solve for x
    x = 137,669,403,632.64/353,545.60
  6. Step 6: Final answer
    x = 389,396.46

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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.