Home / 257,521.96-355,248.20-155,491.12

Finding the Fourth Proportional to 257,521.96, 355,248.20 and 155,491.12

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Solution

The fourth proportional to 257,521.96, 355,248.20 and 155,491.12 is: 214,497.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,521.96 : 355,248.20 = 155,491.12 : x
  2. Step 2: Convert to fraction form
    257,521.96/355,248.20 = 155,491.12/x
  3. Step 3: Cross multiply
    257,521.96x = 355,248.20 × 155,491.12
  4. Step 4: Simplify right side
    257,521.96x = 55,237,940,495.98
  5. Step 5: Solve for x
    x = 55,237,940,495.98/257,521.96
  6. Step 6: Final answer
    x = 214,497.98

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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.