Home / 479,977.80-719,772.30-164,272.20

Finding the Fourth Proportional to 479,977.80, 719,772.30 and 164,272.20

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Solution

The fourth proportional to 479,977.80, 719,772.30 and 164,272.20 is: 246,341.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    479,977.80 : 719,772.30 = 164,272.20 : x
  2. Step 2: Convert to fraction form
    479,977.80/719,772.30 = 164,272.20/x
  3. Step 3: Cross multiply
    479,977.80x = 719,772.30 × 164,272.20
  4. Step 4: Simplify right side
    479,977.80x = 118,238,579,220.06
  5. Step 5: Solve for x
    x = 118,238,579,220.06/479,977.80
  6. Step 6: Final answer
    x = 246,341.77

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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.