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Finding the Fourth Proportional to 354,888, 489,747.24 and 193,746.48

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Solution

The fourth proportional to 354,888, 489,747.24 and 193,746.48 is: 267,371.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,888 : 489,747.24 = 193,746.48 : x
  2. Step 2: Convert to fraction form
    354,888/489,747.24 = 193,746.48/x
  3. Step 3: Cross multiply
    354,888x = 489,747.24 × 193,746.48
  4. Step 4: Simplify right side
    354,888x = 94,886,803,839.72
  5. Step 5: Solve for x
    x = 94,886,803,839.72/354,888
  6. Step 6: Final answer
    x = 267,371.13

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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.