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Finding the Fourth Proportional to 243,708.35, 365,446.62 and 142,535.30

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Solution

The fourth proportional to 243,708.35, 365,446.62 and 142,535.30 is: 213,735.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,708.35 : 365,446.62 = 142,535.30 : x
  2. Step 2: Convert to fraction form
    243,708.35/365,446.62 = 142,535.30/x
  3. Step 3: Cross multiply
    243,708.35x = 365,446.62 × 142,535.30
  4. Step 4: Simplify right side
    243,708.35x = 52,089,041,788.45
  5. Step 5: Solve for x
    x = 52,089,041,788.45/243,708.35
  6. Step 6: Final answer
    x = 213,735.16

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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.