Home / 378,637.24-522,521.18-208,871.36

Finding the Fourth Proportional to 378,637.24, 522,521.18 and 208,871.36

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Solution

The fourth proportional to 378,637.24, 522,521.18 and 208,871.36 is: 288,243.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    378,637.24 : 522,521.18 = 208,871.36 : x
  2. Step 2: Convert to fraction form
    378,637.24/522,521.18 = 208,871.36/x
  3. Step 3: Cross multiply
    378,637.24x = 522,521.18 × 208,871.36
  4. Step 4: Simplify right side
    378,637.24x = 109,139,709,495.41
  5. Step 5: Solve for x
    x = 109,139,709,495.41/378,637.24
  6. Step 6: Final answer
    x = 288,243.46

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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.