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Finding the Fourth Proportional to 247,728.96, 341,807.40 and 145,758.87

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Solution

The fourth proportional to 247,728.96, 341,807.40 and 145,758.87 is: 201,112.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,728.96 : 341,807.40 = 145,758.87 : x
  2. Step 2: Convert to fraction form
    247,728.96/341,807.40 = 145,758.87/x
  3. Step 3: Cross multiply
    247,728.96x = 341,807.40 × 145,758.87
  4. Step 4: Simplify right side
    247,728.96x = 49,821,460,381.64
  5. Step 5: Solve for x
    x = 49,821,460,381.64/247,728.96
  6. Step 6: Final answer
    x = 201,112.78

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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.