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Finding the Fourth Proportional to 369,622.72, 510,076.88 and 208,479.10

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Solution

The fourth proportional to 369,622.72, 510,076.88 and 208,479.10 is: 287,699.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,622.72 : 510,076.88 = 208,479.10 : x
  2. Step 2: Convert to fraction form
    369,622.72/510,076.88 = 208,479.10/x
  3. Step 3: Cross multiply
    369,622.72x = 510,076.88 × 208,479.10
  4. Step 4: Simplify right side
    369,622.72x = 106,340,368,873.21
  5. Step 5: Solve for x
    x = 106,340,368,873.21/369,622.72
  6. Step 6: Final answer
    x = 287,699.76

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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.