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Finding the Fourth Proportional to 353,285.47, 487,603.97 and 200,326.69

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Solution

The fourth proportional to 353,285.47, 487,603.97 and 200,326.69 is: 276,490.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,285.47 : 487,603.97 = 200,326.69 : x
  2. Step 2: Convert to fraction form
    353,285.47/487,603.97 = 200,326.69/x
  3. Step 3: Cross multiply
    353,285.47x = 487,603.97 × 200,326.69
  4. Step 4: Simplify right side
    353,285.47x = 97,680,089,340.96
  5. Step 5: Solve for x
    x = 97,680,089,340.96/353,285.47
  6. Step 6: Final answer
    x = 276,490.54

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.