Home / 287,216.60-430,824.90-73,984.10

Finding the Fourth Proportional to 287,216.60, 430,824.90 and 73,984.10

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Solution

The fourth proportional to 287,216.60, 430,824.90 and 73,984.10 is: 110,976.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,216.60 : 430,824.90 = 73,984.10 : x
  2. Step 2: Convert to fraction form
    287,216.60/430,824.90 = 73,984.10/x
  3. Step 3: Cross multiply
    287,216.60x = 430,824.90 × 73,984.10
  4. Step 4: Simplify right side
    287,216.60x = 31,874,192,484.09
  5. Step 5: Solve for x
    x = 31,874,192,484.09/287,216.60
  6. Step 6: Final answer
    x = 110,976.15

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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.