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Finding the Fourth Proportional to 326,353.17, 489,529.71 and 115,999.41

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Solution

The fourth proportional to 326,353.17, 489,529.71 and 115,999.41 is: 173,999.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,353.17 : 489,529.71 = 115,999.41 : x
  2. Step 2: Convert to fraction form
    326,353.17/489,529.71 = 115,999.41/x
  3. Step 3: Cross multiply
    326,353.17x = 489,529.71 × 115,999.41
  4. Step 4: Simplify right side
    326,353.17x = 56,785,157,537.47
  5. Step 5: Solve for x
    x = 56,785,157,537.47/326,353.17
  6. Step 6: Final answer
    x = 173,999.10

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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.