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Finding the Fourth Proportional to 356,423.16, 491,863.95 and 195,284.31

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Solution

The fourth proportional to 356,423.16, 491,863.95 and 195,284.31 is: 269,492.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,423.16 : 491,863.95 = 195,284.31 : x
  2. Step 2: Convert to fraction form
    356,423.16/491,863.95 = 195,284.31/x
  3. Step 3: Cross multiply
    356,423.16x = 491,863.95 × 195,284.31
  4. Step 4: Simplify right side
    356,423.16x = 96,053,312,089.62
  5. Step 5: Solve for x
    x = 96,053,312,089.62/356,423.16
  6. Step 6: Final answer
    x = 269,492.34

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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.