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Finding the Fourth Proportional to 283,745.40, 424,867.20 and 171,275.28

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Solution

The fourth proportional to 283,745.40, 424,867.20 and 171,275.28 is: 256,459.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,745.40 : 424,867.20 = 171,275.28 : x
  2. Step 2: Convert to fraction form
    283,745.40/424,867.20 = 171,275.28/x
  3. Step 3: Cross multiply
    283,745.40x = 424,867.20 × 171,275.28
  4. Step 4: Simplify right side
    283,745.40x = 72,769,248,642.82
  5. Step 5: Solve for x
    x = 72,769,248,642.82/283,745.40
  6. Step 6: Final answer
    x = 256,459.66

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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.