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Finding the Fourth Proportional to 243,810.72, 336,484.12 and 140,448.48

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Solution

The fourth proportional to 243,810.72, 336,484.12 and 140,448.48 is: 193,833.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    243,810.72 : 336,484.12 = 140,448.48 : x
  2. Step 2: Convert to fraction form
    243,810.72/336,484.12 = 140,448.48/x
  3. Step 3: Cross multiply
    243,810.72x = 336,484.12 × 140,448.48
  4. Step 4: Simplify right side
    243,810.72x = 47,258,683,198.14
  5. Step 5: Solve for x
    x = 47,258,683,198.14/243,810.72
  6. Step 6: Final answer
    x = 193,833.49

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.