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Finding the Fourth Proportional to 556.03, 833.60 and 312.49

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Solution

The fourth proportional to 556.03, 833.60 and 312.49 is: 468.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    556.03 : 833.60 = 312.49 : x
  2. Step 2: Convert to fraction form
    556.03/833.60 = 312.49/x
  3. Step 3: Cross multiply
    556.03x = 833.60 × 312.49
  4. Step 4: Simplify right side
    556.03x = 260,487.50
  5. Step 5: Solve for x
    x = 260,487.50/556.03
  6. Step 6: Final answer
    x = 468.48

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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.