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Finding the Fourth Proportional to 243,699.32, 365,555.25 and 115,585.67

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Solution

The fourth proportional to 243,699.32, 365,555.25 and 115,585.67 is: 173,381.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,699.32 : 365,555.25 = 115,585.67 : x
  2. Step 2: Convert to fraction form
    243,699.32/365,555.25 = 115,585.67/x
  3. Step 3: Cross multiply
    243,699.32x = 365,555.25 × 115,585.67
  4. Step 4: Simplify right side
    243,699.32x = 42,252,948,493.27
  5. Step 5: Solve for x
    x = 42,252,948,493.27/243,699.32
  6. Step 6: Final answer
    x = 173,381.48

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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.