Home / 320,116.66-480,304.08-142,502.20

Finding the Fourth Proportional to 320,116.66, 480,304.08 and 142,502.20

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Solution

The fourth proportional to 320,116.66, 480,304.08 and 142,502.20 is: 213,810.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,116.66 : 480,304.08 = 142,502.20 : x
  2. Step 2: Convert to fraction form
    320,116.66/480,304.08 = 142,502.20/x
  3. Step 3: Cross multiply
    320,116.66x = 480,304.08 × 142,502.20
  4. Step 4: Simplify right side
    320,116.66x = 68,444,388,068.98
  5. Step 5: Solve for x
    x = 68,444,388,068.98/320,116.66
  6. Step 6: Final answer
    x = 213,810.77

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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.