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Finding the Fourth Proportional to 379,852.74, 523,683.80 and 243,650.23

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Solution

The fourth proportional to 379,852.74, 523,683.80 and 243,650.23 is: 335,908.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,852.74 : 523,683.80 = 243,650.23 : x
  2. Step 2: Convert to fraction form
    379,852.74/523,683.80 = 243,650.23/x
  3. Step 3: Cross multiply
    379,852.74x = 523,683.80 × 243,650.23
  4. Step 4: Simplify right side
    379,852.74x = 127,595,676,398.94
  5. Step 5: Solve for x
    x = 127,595,676,398.94/379,852.74
  6. Step 6: Final answer
    x = 335,908.27

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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.