Home / 434,428.20-651,690.90-134,906.40

Finding the Fourth Proportional to 434,428.20, 651,690.90 and 134,906.40

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Solution

The fourth proportional to 434,428.20, 651,690.90 and 134,906.40 is: 202,374.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    434,428.20 : 651,690.90 = 134,906.40 : x
  2. Step 2: Convert to fraction form
    434,428.20/651,690.90 = 134,906.40/x
  3. Step 3: Cross multiply
    434,428.20x = 651,690.90 × 134,906.40
  4. Step 4: Simplify right side
    434,428.20x = 87,917,273,231.76
  5. Step 5: Solve for x
    x = 87,917,273,231.76/434,428.20
  6. Step 6: Final answer
    x = 202,374.69

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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.