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Finding the Fourth Proportional to 247,339.44, 341,328.48 and 139,907.28

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Solution

The fourth proportional to 247,339.44, 341,328.48 and 139,907.28 is: 193,072.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,339.44 : 341,328.48 = 139,907.28 : x
  2. Step 2: Convert to fraction form
    247,339.44/341,328.48 = 139,907.28/x
  3. Step 3: Cross multiply
    247,339.44x = 341,328.48 × 139,907.28
  4. Step 4: Simplify right side
    247,339.44x = 47,754,339,223.33
  5. Step 5: Solve for x
    x = 47,754,339,223.33/247,339.44
  6. Step 6: Final answer
    x = 193,072.08

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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.