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Finding the Fourth Proportional to 353,994.84, 488,035.24 and 342,987.48

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Solution

The fourth proportional to 353,994.84, 488,035.24 and 342,987.48 is: 472,859.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,994.84 : 488,035.24 = 342,987.48 : x
  2. Step 2: Convert to fraction form
    353,994.84/488,035.24 = 342,987.48/x
  3. Step 3: Cross multiply
    353,994.84x = 488,035.24 × 342,987.48
  4. Step 4: Simplify right side
    353,994.84x = 167,389,977,118.80
  5. Step 5: Solve for x
    x = 167,389,977,118.80/353,994.84
  6. Step 6: Final answer
    x = 472,859.94

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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.