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Finding the Fourth Proportional to 369,619.92, 510,074.76 and 208,474.47

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Solution

The fourth proportional to 369,619.92, 510,074.76 and 208,474.47 is: 287,694.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,619.92 : 510,074.76 = 208,474.47 : x
  2. Step 2: Convert to fraction form
    369,619.92/510,074.76 = 208,474.47/x
  3. Step 3: Cross multiply
    369,619.92x = 510,074.76 × 208,474.47
  4. Step 4: Simplify right side
    369,619.92x = 106,337,565,251.38
  5. Step 5: Solve for x
    x = 106,337,565,251.38/369,619.92
  6. Step 6: Final answer
    x = 287,694.36

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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.