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Finding the Fourth Proportional to 247,322.50, 341,305.08 and 139,890.22

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Solution

The fourth proportional to 247,322.50, 341,305.08 and 139,890.22 is: 193,048.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,322.50 : 341,305.08 = 139,890.22 : x
  2. Step 2: Convert to fraction form
    247,322.50/341,305.08 = 139,890.22/x
  3. Step 3: Cross multiply
    247,322.50x = 341,305.08 × 139,890.22
  4. Step 4: Simplify right side
    247,322.50x = 47,745,242,728.32
  5. Step 5: Solve for x
    x = 47,745,242,728.32/247,322.50
  6. Step 6: Final answer
    x = 193,048.52

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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.