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Finding the Fourth Proportional to 374,411.76, 516,616.56 and 213,263.28

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Solution

The fourth proportional to 374,411.76, 516,616.56 and 213,263.28 is: 294,262.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,411.76 : 516,616.56 = 213,263.28 : x
  2. Step 2: Convert to fraction form
    374,411.76/516,616.56 = 213,263.28/x
  3. Step 3: Cross multiply
    374,411.76x = 516,616.56 × 213,263.28
  4. Step 4: Simplify right side
    374,411.76x = 110,175,342,087.92
  5. Step 5: Solve for x
    x = 110,175,342,087.92/374,411.76
  6. Step 6: Final answer
    x = 294,262.50

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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.