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Finding the Fourth Proportional to 369,747.30, 510,239.52 and 208,600.20

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Solution

The fourth proportional to 369,747.30, 510,239.52 and 208,600.20 is: 287,861.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,747.30 : 510,239.52 = 208,600.20 : x
  2. Step 2: Convert to fraction form
    369,747.30/510,239.52 = 208,600.20/x
  3. Step 3: Cross multiply
    369,747.30x = 510,239.52 × 208,600.20
  4. Step 4: Simplify right side
    369,747.30x = 106,436,065,919.90
  5. Step 5: Solve for x
    x = 106,436,065,919.90/369,747.30
  6. Step 6: Final answer
    x = 287,861.64

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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.