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Finding the Fourth Proportional to 371,648.84, 512,911.08 and 208,304.53

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Solution

The fourth proportional to 371,648.84, 512,911.08 and 208,304.53 is: 287,480.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,648.84 : 512,911.08 = 208,304.53 : x
  2. Step 2: Convert to fraction form
    371,648.84/512,911.08 = 208,304.53/x
  3. Step 3: Cross multiply
    371,648.84x = 512,911.08 × 208,304.53
  4. Step 4: Simplify right side
    371,648.84x = 106,841,700,168.92
  5. Step 5: Solve for x
    x = 106,841,700,168.92/371,648.84
  6. Step 6: Final answer
    x = 287,480.25

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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.