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Finding the Fourth Proportional to 424,088.91, 636,133.64 and 199,284.39

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Solution

The fourth proportional to 424,088.91, 636,133.64 and 199,284.39 is: 298,926.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    424,088.91 : 636,133.64 = 199,284.39 : x
  2. Step 2: Convert to fraction form
    424,088.91/636,133.64 = 199,284.39/x
  3. Step 3: Cross multiply
    424,088.91x = 636,133.64 × 199,284.39
  4. Step 4: Simplify right side
    424,088.91x = 126,771,503,409.46
  5. Step 5: Solve for x
    x = 126,771,503,409.46/424,088.91
  6. Step 6: Final answer
    x = 298,926.71

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.