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Finding the Fourth Proportional to 324,117.40, 486,176.64 and 87,460.24

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Solution

The fourth proportional to 324,117.40, 486,176.64 and 87,460.24 is: 131,190.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    324,117.40 : 486,176.64 = 87,460.24 : x
  2. Step 2: Convert to fraction form
    324,117.40/486,176.64 = 87,460.24/x
  3. Step 3: Cross multiply
    324,117.40x = 486,176.64 × 87,460.24
  4. Step 4: Simplify right side
    324,117.40x = 42,521,125,616.79
  5. Step 5: Solve for x
    x = 42,521,125,616.79/324,117.40
  6. Step 6: Final answer
    x = 131,190.51

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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.