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Finding the Fourth Proportional to 247,002.17, 340,858.53 and 139,569.89

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Solution

The fourth proportional to 247,002.17, 340,858.53 and 139,569.89 is: 192,603.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,002.17 : 340,858.53 = 139,569.89 : x
  2. Step 2: Convert to fraction form
    247,002.17/340,858.53 = 139,569.89/x
  3. Step 3: Cross multiply
    247,002.17x = 340,858.53 × 139,569.89
  4. Step 4: Simplify right side
    247,002.17x = 47,573,585,833.37
  5. Step 5: Solve for x
    x = 47,573,585,833.37/247,002.17
  6. Step 6: Final answer
    x = 192,603.92

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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.