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Finding the Fourth Proportional to 262,856.36, 362,862.87 and 153,945.54

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Solution

The fourth proportional to 262,856.36, 362,862.87 and 153,945.54 is: 212,515.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,856.36 : 362,862.87 = 153,945.54 : x
  2. Step 2: Convert to fraction form
    262,856.36/362,862.87 = 153,945.54/x
  3. Step 3: Cross multiply
    262,856.36x = 362,862.87 × 153,945.54
  4. Step 4: Simplify right side
    262,856.36x = 55,861,120,468.10
  5. Step 5: Solve for x
    x = 55,861,120,468.10/262,856.36
  6. Step 6: Final answer
    x = 212,515.77

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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.