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Finding the Fourth Proportional to 324,124.10, 486,186.15 and 87,466.40

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Solution

The fourth proportional to 324,124.10, 486,186.15 and 87,466.40 is: 131,199.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,124.10 : 486,186.15 = 87,466.40 : x
  2. Step 2: Convert to fraction form
    324,124.10/486,186.15 = 87,466.40/x
  3. Step 3: Cross multiply
    324,124.10x = 486,186.15 × 87,466.40
  4. Step 4: Simplify right side
    324,124.10x = 42,524,952,270.36
  5. Step 5: Solve for x
    x = 42,524,952,270.36/324,124.10
  6. Step 6: Final answer
    x = 131,199.60

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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.