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Finding the Fourth Proportional to 369,775.92, 510,246.86 and 208,621.56

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Solution

The fourth proportional to 369,775.92, 510,246.86 and 208,621.56 is: 287,872.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,775.92 : 510,246.86 = 208,621.56 : x
  2. Step 2: Convert to fraction form
    369,775.92/510,246.86 = 208,621.56/x
  3. Step 3: Cross multiply
    369,775.92x = 510,246.86 × 208,621.56
  4. Step 4: Simplify right side
    369,775.92x = 106,448,495,918.30
  5. Step 5: Solve for x
    x = 106,448,495,918.30/369,775.92
  6. Step 6: Final answer
    x = 287,872.98

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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.