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Finding the Fourth Proportional to 374,477.52, 516,739.92 and 213,298.80

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Solution

The fourth proportional to 374,477.52, 516,739.92 and 213,298.80 is: 294,330.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,477.52 : 516,739.92 = 213,298.80 : x
  2. Step 2: Convert to fraction form
    374,477.52/516,739.92 = 213,298.80/x
  3. Step 3: Cross multiply
    374,477.52x = 516,739.92 × 213,298.80
  4. Step 4: Simplify right side
    374,477.52x = 110,220,004,848.10
  5. Step 5: Solve for x
    x = 110,220,004,848.10/374,477.52
  6. Step 6: Final answer
    x = 294,330.10

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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.