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Finding the Fourth Proportional to 616,730.40, 925,095.60 and 217,821.60

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Solution

The fourth proportional to 616,730.40, 925,095.60 and 217,821.60 is: 326,732.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    616,730.40 : 925,095.60 = 217,821.60 : x
  2. Step 2: Convert to fraction form
    616,730.40/925,095.60 = 217,821.60/x
  3. Step 3: Cross multiply
    616,730.40x = 925,095.60 × 217,821.60
  4. Step 4: Simplify right side
    616,730.40x = 201,505,803,744.96
  5. Step 5: Solve for x
    x = 201,505,803,744.96/616,730.40
  6. Step 6: Final answer
    x = 326,732.40

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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.