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Finding the Fourth Proportional to 262,495.20, 362,243.28 and 143,263.20

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Solution

The fourth proportional to 262,495.20, 362,243.28 and 143,263.20 is: 197,703.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,495.20 : 362,243.28 = 143,263.20 : x
  2. Step 2: Convert to fraction form
    262,495.20/362,243.28 = 143,263.20/x
  3. Step 3: Cross multiply
    262,495.20x = 362,243.28 × 143,263.20
  4. Step 4: Simplify right side
    262,495.20x = 51,896,131,471.30
  5. Step 5: Solve for x
    x = 51,896,131,471.30/262,495.20
  6. Step 6: Final answer
    x = 197,703.16

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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.