Home / 256,966.56-385,437.96-67,422.24

Finding the Fourth Proportional to 256,966.56, 385,437.96 and 67,422.24

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Solution

The fourth proportional to 256,966.56, 385,437.96 and 67,422.24 is: 101,130.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    256,966.56 : 385,437.96 = 67,422.24 : x
  2. Step 2: Convert to fraction form
    256,966.56/385,437.96 = 67,422.24/x
  3. Step 3: Cross multiply
    256,966.56x = 385,437.96 × 67,422.24
  4. Step 4: Simplify right side
    256,966.56x = 25,987,090,644.23
  5. Step 5: Solve for x
    x = 25,987,090,644.23/256,966.56
  6. Step 6: Final answer
    x = 101,130.24

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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.