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Finding the Fourth Proportional to 245,771.78, 368,657.50 and 140,516.92

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Solution

The fourth proportional to 245,771.78, 368,657.50 and 140,516.92 is: 210,775.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,771.78 : 368,657.50 = 140,516.92 : x
  2. Step 2: Convert to fraction form
    245,771.78/368,657.50 = 140,516.92/x
  3. Step 3: Cross multiply
    245,771.78x = 368,657.50 × 140,516.92
  4. Step 4: Simplify right side
    245,771.78x = 51,802,616,434.90
  5. Step 5: Solve for x
    x = 51,802,616,434.90/245,771.78
  6. Step 6: Final answer
    x = 210,775.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.