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Finding the Fourth Proportional to 324,088.22, 486,141.31 and 87,430.22

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Solution

The fourth proportional to 324,088.22, 486,141.31 and 87,430.22 is: 131,147.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,088.22 : 486,141.31 = 87,430.22 : x
  2. Step 2: Convert to fraction form
    324,088.22/486,141.31 = 87,430.22/x
  3. Step 3: Cross multiply
    324,088.22x = 486,141.31 × 87,430.22
  4. Step 4: Simplify right side
    324,088.22x = 42,503,441,186.00
  5. Step 5: Solve for x
    x = 42,503,441,186.00/324,088.22
  6. Step 6: Final answer
    x = 131,147.75

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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.