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Finding the Fourth Proportional to 283,108.40, 424,662.60 and 103,207.32

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Solution

The fourth proportional to 283,108.40, 424,662.60 and 103,207.32 is: 154,810.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,108.40 : 424,662.60 = 103,207.32 : x
  2. Step 2: Convert to fraction form
    283,108.40/424,662.60 = 103,207.32/x
  3. Step 3: Cross multiply
    283,108.40x = 424,662.60 × 103,207.32
  4. Step 4: Simplify right side
    283,108.40x = 43,828,288,850.23
  5. Step 5: Solve for x
    x = 43,828,288,850.23/283,108.40
  6. Step 6: Final answer
    x = 154,810.98

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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.