Home / 305,288.16-457,838.96-211,123.50

Finding the Fourth Proportional to 305,288.16, 457,838.96 and 211,123.50

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Solution

The fourth proportional to 305,288.16, 457,838.96 and 211,123.50 is: 316,620.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    305,288.16 : 457,838.96 = 211,123.50 : x
  2. Step 2: Convert to fraction form
    305,288.16/457,838.96 = 211,123.50/x
  3. Step 3: Cross multiply
    305,288.16x = 457,838.96 × 211,123.50
  4. Step 4: Simplify right side
    305,288.16x = 96,660,562,615.94
  5. Step 5: Solve for x
    x = 96,660,562,615.94/305,288.16
  6. Step 6: Final answer
    x = 316,620.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.