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Finding the Fourth Proportional to 243,368.15, 365,240.54 and 159,105.47

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Solution

The fourth proportional to 243,368.15, 365,240.54 and 159,105.47 is: 238,781.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,368.15 : 365,240.54 = 159,105.47 : x
  2. Step 2: Convert to fraction form
    243,368.15/365,240.54 = 159,105.47/x
  3. Step 3: Cross multiply
    243,368.15x = 365,240.54 × 159,105.47
  4. Step 4: Simplify right side
    243,368.15x = 58,111,766,351.31
  5. Step 5: Solve for x
    x = 58,111,766,351.31/243,368.15
  6. Step 6: Final answer
    x = 238,781.32

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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.