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Finding the Fourth Proportional to 258,011.28, 355,885.92 and 162,437.76

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Solution

The fourth proportional to 258,011.28, 355,885.92 and 162,437.76 is: 224,057.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,011.28 : 355,885.92 = 162,437.76 : x
  2. Step 2: Convert to fraction form
    258,011.28/355,885.92 = 162,437.76/x
  3. Step 3: Cross multiply
    258,011.28x = 355,885.92 × 162,437.76
  4. Step 4: Simplify right side
    258,011.28x = 57,809,311,660.34
  5. Step 5: Solve for x
    x = 57,809,311,660.34/258,011.28
  6. Step 6: Final answer
    x = 224,057.30

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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.