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Finding the Fourth Proportional to 389,794.22, 537,916.11 and 210,946.22

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Solution

The fourth proportional to 389,794.22, 537,916.11 and 210,946.22 is: 291,105.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    389,794.22 : 537,916.11 = 210,946.22 : x
  2. Step 2: Convert to fraction form
    389,794.22/537,916.11 = 210,946.22/x
  3. Step 3: Cross multiply
    389,794.22x = 537,916.11 × 210,946.22
  4. Step 4: Simplify right side
    389,794.22x = 113,471,370,081.60
  5. Step 5: Solve for x
    x = 113,471,370,081.60/389,794.22
  6. Step 6: Final answer
    x = 291,105.83

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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.