Home / 354,026.90-530,966.54-129,493.10

Finding the Fourth Proportional to 354,026.90, 530,966.54 and 129,493.10

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Solution

The fourth proportional to 354,026.90, 530,966.54 and 129,493.10 is: 194,212.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    354,026.90 : 530,966.54 = 129,493.10 : x
  2. Step 2: Convert to fraction form
    354,026.90/530,966.54 = 129,493.10/x
  3. Step 3: Cross multiply
    354,026.90x = 530,966.54 × 129,493.10
  4. Step 4: Simplify right side
    354,026.90x = 68,756,503,260.87
  5. Step 5: Solve for x
    x = 68,756,503,260.87/354,026.90
  6. Step 6: Final answer
    x = 194,212.65

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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.