Home / 326,257.16-489,291.78-89,607.56

Finding the Fourth Proportional to 326,257.16, 489,291.78 and 89,607.56

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Solution

The fourth proportional to 326,257.16, 489,291.78 and 89,607.56 is: 134,385.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    326,257.16 : 489,291.78 = 89,607.56 : x
  2. Step 2: Convert to fraction form
    326,257.16/489,291.78 = 89,607.56/x
  3. Step 3: Cross multiply
    326,257.16x = 489,291.78 × 89,607.56
  4. Step 4: Simplify right side
    326,257.16x = 43,844,242,533.86
  5. Step 5: Solve for x
    x = 43,844,242,533.86/326,257.16
  6. Step 6: Final answer
    x = 134,385.53

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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.