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Finding the Fourth Proportional to 442,503.21, 610,653.09 and 251,553.39

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Solution

The fourth proportional to 442,503.21, 610,653.09 and 251,553.39 is: 347,142.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    442,503.21 : 610,653.09 = 251,553.39 : x
  2. Step 2: Convert to fraction form
    442,503.21/610,653.09 = 251,553.39/x
  3. Step 3: Cross multiply
    442,503.21x = 610,653.09 × 251,553.39
  4. Step 4: Simplify right side
    442,503.21x = 153,611,854,903.48
  5. Step 5: Solve for x
    x = 153,611,854,903.48/442,503.21
  6. Step 6: Final answer
    x = 347,142.92

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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.