Home / 426,374.15-639,347.27-141,964.52

Finding the Fourth Proportional to 426,374.15, 639,347.27 and 141,964.52

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Solution

The fourth proportional to 426,374.15, 639,347.27 and 141,964.52 is: 212,875.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    426,374.15 : 639,347.27 = 141,964.52 : x
  2. Step 2: Convert to fraction form
    426,374.15/639,347.27 = 141,964.52/x
  3. Step 3: Cross multiply
    426,374.15x = 639,347.27 × 141,964.52
  4. Step 4: Simplify right side
    426,374.15x = 90,764,624,392.30
  5. Step 5: Solve for x
    x = 90,764,624,392.30/426,374.15
  6. Step 6: Final answer
    x = 212,875.54

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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.