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Finding the Fourth Proportional to 318,416.70, 439,410.24 and 175,168.20

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Solution

The fourth proportional to 318,416.70, 439,410.24 and 175,168.20 is: 241,729.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,416.70 : 439,410.24 = 175,168.20 : x
  2. Step 2: Convert to fraction form
    318,416.70/439,410.24 = 175,168.20/x
  3. Step 3: Cross multiply
    318,416.70x = 439,410.24 × 175,168.20
  4. Step 4: Simplify right side
    318,416.70x = 76,970,700,802.37
  5. Step 5: Solve for x
    x = 76,970,700,802.37/318,416.70
  6. Step 6: Final answer
    x = 241,729.47

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.