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Finding the Fourth Proportional to 351,007.70, 526,511.55 and 209,290.10

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Solution

The fourth proportional to 351,007.70, 526,511.55 and 209,290.10 is: 313,935.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,007.70 : 526,511.55 = 209,290.10 : x
  2. Step 2: Convert to fraction form
    351,007.70/526,511.55 = 209,290.10/x
  3. Step 3: Cross multiply
    351,007.70x = 526,511.55 × 209,290.10
  4. Step 4: Simplify right side
    351,007.70x = 110,193,654,950.66
  5. Step 5: Solve for x
    x = 110,193,654,950.66/351,007.70
  6. Step 6: Final answer
    x = 313,935.15

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1.5x scale

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.