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Finding the Fourth Proportional to 356,007.64, 491,289.22 and 192,663.80

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Solution

The fourth proportional to 356,007.64, 491,289.22 and 192,663.80 is: 265,875.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    356,007.64 : 491,289.22 = 192,663.80 : x
  2. Step 2: Convert to fraction form
    356,007.64/491,289.22 = 192,663.80/x
  3. Step 3: Cross multiply
    356,007.64x = 491,289.22 × 192,663.80
  4. Step 4: Simplify right side
    356,007.64x = 94,653,648,024.24
  5. Step 5: Solve for x
    x = 94,653,648,024.24/356,007.64
  6. Step 6: Final answer
    x = 265,875.33

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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.