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Finding the Fourth Proportional to 354,916.96, 489,786.51 and 227,593.06

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Solution

The fourth proportional to 354,916.96, 489,786.51 and 227,593.06 is: 314,079.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,916.96 : 489,786.51 = 227,593.06 : x
  2. Step 2: Convert to fraction form
    354,916.96/489,786.51 = 227,593.06/x
  3. Step 3: Cross multiply
    354,916.96x = 489,786.51 × 227,593.06
  4. Step 4: Simplify right side
    354,916.96x = 111,472,010,186.63
  5. Step 5: Solve for x
    x = 111,472,010,186.63/354,916.96
  6. Step 6: Final answer
    x = 314,079.13

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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.