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Finding the Fourth Proportional to 356,411.62, 491,862.81 and 195,280.66

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Solution

The fourth proportional to 356,411.62, 491,862.81 and 195,280.66 is: 269,495.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,411.62 : 491,862.81 = 195,280.66 : x
  2. Step 2: Convert to fraction form
    356,411.62/491,862.81 = 195,280.66/x
  3. Step 3: Cross multiply
    356,411.62x = 491,862.81 × 195,280.66
  4. Step 4: Simplify right side
    356,411.62x = 96,051,294,166.25
  5. Step 5: Solve for x
    x = 96,051,294,166.25/356,411.62
  6. Step 6: Final answer
    x = 269,495.41

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1.5x scale

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.