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Finding the Fourth Proportional to 344,565.72, 515,877.66 and 260,057.07

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Solution

The fourth proportional to 344,565.72, 515,877.66 and 260,057.07 is: 389,352.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    344,565.72 : 515,877.66 = 260,057.07 : x
  2. Step 2: Convert to fraction form
    344,565.72/515,877.66 = 260,057.07/x
  3. Step 3: Cross multiply
    344,565.72x = 515,877.66 × 260,057.07
  4. Step 4: Simplify right side
    344,565.72x = 134,157,632,738.06
  5. Step 5: Solve for x
    x = 134,157,632,738.06/344,565.72
  6. Step 6: Final answer
    x = 389,352.81

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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.