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Finding the Fourth Proportional to 301,638.22, 452,456.90 and 76,998.74

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Solution

The fourth proportional to 301,638.22, 452,456.90 and 76,998.74 is: 115,498.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,638.22 : 452,456.90 = 76,998.74 : x
  2. Step 2: Convert to fraction form
    301,638.22/452,456.90 = 76,998.74/x
  3. Step 3: Cross multiply
    301,638.22x = 452,456.90 × 76,998.74
  4. Step 4: Simplify right side
    301,638.22x = 34,838,611,204.31
  5. Step 5: Solve for x
    x = 34,838,611,204.31/301,638.22
  6. Step 6: Final answer
    x = 115,498.00

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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.