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Finding the Fourth Proportional to 247,004.91, 340,862.32 and 139,572.63

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Solution

The fourth proportional to 247,004.91, 340,862.32 and 139,572.63 is: 192,607.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,004.91 : 340,862.32 = 139,572.63 : x
  2. Step 2: Convert to fraction form
    247,004.91/340,862.32 = 139,572.63/x
  3. Step 3: Cross multiply
    247,004.91x = 340,862.32 × 139,572.63
  4. Step 4: Simplify right side
    247,004.91x = 47,575,050,470.30
  5. Step 5: Solve for x
    x = 47,575,050,470.30/247,004.91
  6. Step 6: Final answer
    x = 192,607.71

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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.