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Finding the Fourth Proportional to 651.07, 898.45 and 371.35

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Solution

The fourth proportional to 651.07, 898.45 and 371.35 is: 512.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    651.07 : 898.45 = 371.35 : x
  2. Step 2: Convert to fraction form
    651.07/898.45 = 371.35/x
  3. Step 3: Cross multiply
    651.07x = 898.45 × 371.35
  4. Step 4: Simplify right side
    651.07x = 333,639.41
  5. Step 5: Solve for x
    x = 333,639.41/651.07
  6. Step 6: Final answer
    x = 512.45

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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.