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Finding the Fourth Proportional to 262,477.20, 393,424.20 and 144,233.40

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Solution

The fourth proportional to 262,477.20, 393,424.20 and 144,233.40 is: 216,189.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,477.20 : 393,424.20 = 144,233.40 : x
  2. Step 2: Convert to fraction form
    262,477.20/393,424.20 = 144,233.40/x
  3. Step 3: Cross multiply
    262,477.20x = 393,424.20 × 144,233.40
  4. Step 4: Simplify right side
    262,477.20x = 56,744,910,008.28
  5. Step 5: Solve for x
    x = 56,744,910,008.28/262,477.20
  6. Step 6: Final answer
    x = 216,189.86

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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.