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Finding the Fourth Proportional to 243,643.70, 365,465.55 and 159,662.90

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Solution

The fourth proportional to 243,643.70, 365,465.55 and 159,662.90 is: 239,494.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,643.70 : 365,465.55 = 159,662.90 : x
  2. Step 2: Convert to fraction form
    243,643.70/365,465.55 = 159,662.90/x
  3. Step 3: Cross multiply
    243,643.70x = 365,465.55 × 159,662.90
  4. Step 4: Simplify right side
    243,643.70x = 58,351,289,563.10
  5. Step 5: Solve for x
    x = 58,351,289,563.10/243,643.70
  6. Step 6: Final answer
    x = 239,494.35

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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.