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Finding the Fourth Proportional to 262,402.20, 393,603.30 and 240,629.40

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Solution

The fourth proportional to 262,402.20, 393,603.30 and 240,629.40 is: 360,944.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,402.20 : 393,603.30 = 240,629.40 : x
  2. Step 2: Convert to fraction form
    262,402.20/393,603.30 = 240,629.40/x
  3. Step 3: Cross multiply
    262,402.20x = 393,603.30 × 240,629.40
  4. Step 4: Simplify right side
    262,402.20x = 94,712,525,917.02
  5. Step 5: Solve for x
    x = 94,712,525,917.02/262,402.20
  6. Step 6: Final answer
    x = 360,944.10

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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.