Home / 377,529.12-521,001.72-216,415.26

Finding the Fourth Proportional to 377,529.12, 521,001.72 and 216,415.26

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Solution

The fourth proportional to 377,529.12, 521,001.72 and 216,415.26 is: 298,659.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    377,529.12 : 521,001.72 = 216,415.26 : x
  2. Step 2: Convert to fraction form
    377,529.12/521,001.72 = 216,415.26/x
  3. Step 3: Cross multiply
    377,529.12x = 521,001.72 × 216,415.26
  4. Step 4: Simplify right side
    377,529.12x = 112,752,722,694.25
  5. Step 5: Solve for x
    x = 112,752,722,694.25/377,529.12
  6. Step 6: Final answer
    x = 298,659.67

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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.