Home / 307,870.60-462,230.22-212,867.32

Finding the Fourth Proportional to 307,870.60, 462,230.22 and 212,867.32

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Solution

The fourth proportional to 307,870.60, 462,230.22 and 212,867.32 is: 319,594.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    307,870.60 : 462,230.22 = 212,867.32 : x
  2. Step 2: Convert to fraction form
    307,870.60/462,230.22 = 212,867.32/x
  3. Step 3: Cross multiply
    307,870.60x = 462,230.22 × 212,867.32
  4. Step 4: Simplify right side
    307,870.60x = 98,393,708,154.41
  5. Step 5: Solve for x
    x = 98,393,708,154.41/307,870.60
  6. Step 6: Final answer
    x = 319,594.36

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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.