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Finding the Fourth Proportional to 374,579.77, 516,953.85 and 213,486.71

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Solution

The fourth proportional to 374,579.77, 516,953.85 and 213,486.71 is: 294,630.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,579.77 : 516,953.85 = 213,486.71 : x
  2. Step 2: Convert to fraction form
    374,579.77/516,953.85 = 213,486.71/x
  3. Step 3: Cross multiply
    374,579.77x = 516,953.85 × 213,486.71
  4. Step 4: Simplify right side
    374,579.77x = 110,362,776,658.33
  5. Step 5: Solve for x
    x = 110,362,776,658.33/374,579.77
  6. Step 6: Final answer
    x = 294,630.91

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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.