Home / 331,509.12-457,362.60-216,853.24

Finding the Fourth Proportional to 331,509.12, 457,362.60 and 216,853.24

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Solution

The fourth proportional to 331,509.12, 457,362.60 and 216,853.24 is: 299,178.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,509.12 : 457,362.60 = 216,853.24 : x
  2. Step 2: Convert to fraction form
    331,509.12/457,362.60 = 216,853.24/x
  3. Step 3: Cross multiply
    331,509.12x = 457,362.60 × 216,853.24
  4. Step 4: Simplify right side
    331,509.12x = 99,180,561,664.82
  5. Step 5: Solve for x
    x = 99,180,561,664.82/331,509.12
  6. Step 6: Final answer
    x = 299,178.98

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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.