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Finding the Fourth Proportional to 369,641.28, 510,110.85 and 208,499.54

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Solution

The fourth proportional to 369,641.28, 510,110.85 and 208,499.54 is: 287,732.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,641.28 : 510,110.85 = 208,499.54 : x
  2. Step 2: Convert to fraction form
    369,641.28/510,110.85 = 208,499.54/x
  3. Step 3: Cross multiply
    369,641.28x = 510,110.85 × 208,499.54
  4. Step 4: Simplify right side
    369,641.28x = 106,357,877,574.01
  5. Step 5: Solve for x
    x = 106,357,877,574.01/369,641.28
  6. Step 6: Final answer
    x = 287,732.68

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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.