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Finding the Fourth Proportional to 283,985.40, 425,459.70 and 173,047.80

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Solution

The fourth proportional to 283,985.40, 425,459.70 and 173,047.80 is: 259,255.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,985.40 : 425,459.70 = 173,047.80 : x
  2. Step 2: Convert to fraction form
    283,985.40/425,459.70 = 173,047.80/x
  3. Step 3: Cross multiply
    283,985.40x = 425,459.70 × 173,047.80
  4. Step 4: Simplify right side
    283,985.40x = 73,624,865,073.66
  5. Step 5: Solve for x
    x = 73,624,865,073.66/283,985.40
  6. Step 6: Final answer
    x = 259,255.81

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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.