Home / 331,281.12-457,051.48-216,626.84

Finding the Fourth Proportional to 331,281.12, 457,051.48 and 216,626.84

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Solution

The fourth proportional to 331,281.12, 457,051.48 and 216,626.84 is: 298,868.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,281.12 : 457,051.48 = 216,626.84 : x
  2. Step 2: Convert to fraction form
    331,281.12/457,051.48 = 216,626.84/x
  3. Step 3: Cross multiply
    331,281.12x = 457,051.48 × 216,626.84
  4. Step 4: Simplify right side
    331,281.12x = 99,009,617,829.72
  5. Step 5: Solve for x
    x = 99,009,617,829.72/331,281.12
  6. Step 6: Final answer
    x = 298,868.88

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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.