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Finding the Fourth Proportional to 292,470.10, 438,720.73 and 92,806.11

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Solution

The fourth proportional to 292,470.10, 438,720.73 and 92,806.11 is: 139,214.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    292,470.10 : 438,720.73 = 92,806.11 : x
  2. Step 2: Convert to fraction form
    292,470.10/438,720.73 = 92,806.11/x
  3. Step 3: Cross multiply
    292,470.10x = 438,720.73 × 92,806.11
  4. Step 4: Simplify right side
    292,470.10x = 40,715,964,095.65
  5. Step 5: Solve for x
    x = 40,715,964,095.65/292,470.10
  6. Step 6: Final answer
    x = 139,214.11

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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.