Home / 331,283.12-457,054.24-216,628.84

Finding the Fourth Proportional to 331,283.12, 457,054.24 and 216,628.84

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Solution

The fourth proportional to 331,283.12, 457,054.24 and 216,628.84 is: 298,871.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,283.12 : 457,054.24 = 216,628.84 : x
  2. Step 2: Convert to fraction form
    331,283.12/457,054.24 = 216,628.84/x
  3. Step 3: Cross multiply
    331,283.12x = 457,054.24 × 216,628.84
  4. Step 4: Simplify right side
    331,283.12x = 99,011,129,828.28
  5. Step 5: Solve for x
    x = 99,011,129,828.28/331,283.12
  6. Step 6: Final answer
    x = 298,871.64

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1.5x scale

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.