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Finding the Fourth Proportional to 432,392.40, 648,102.60 and 207,860.40

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Solution

The fourth proportional to 432,392.40, 648,102.60 and 207,860.40 is: 311,556.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    432,392.40 : 648,102.60 = 207,860.40 : x
  2. Step 2: Convert to fraction form
    432,392.40/648,102.60 = 207,860.40/x
  3. Step 3: Cross multiply
    432,392.40x = 648,102.60 × 207,860.40
  4. Step 4: Simplify right side
    432,392.40x = 134,714,865,677.04
  5. Step 5: Solve for x
    x = 134,714,865,677.04/432,392.40
  6. Step 6: Final answer
    x = 311,556.97

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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.