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Finding the Fourth Proportional to 353,378.04, 487,551.60 and 200,404.20

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Solution

The fourth proportional to 353,378.04, 487,551.60 and 200,404.20 is: 276,495.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,378.04 : 487,551.60 = 200,404.20 : x
  2. Step 2: Convert to fraction form
    353,378.04/487,551.60 = 200,404.20/x
  3. Step 3: Cross multiply
    353,378.04x = 487,551.60 × 200,404.20
  4. Step 4: Simplify right side
    353,378.04x = 97,707,388,356.72
  5. Step 5: Solve for x
    x = 97,707,388,356.72/353,378.04
  6. Step 6: Final answer
    x = 276,495.36

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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.