Home / 317,905.72-476,980.86-140,287.24

Finding the Fourth Proportional to 317,905.72, 476,980.86 and 140,287.24

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Solution

The fourth proportional to 317,905.72, 476,980.86 and 140,287.24 is: 210,484.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    317,905.72 : 476,980.86 = 140,287.24 : x
  2. Step 2: Convert to fraction form
    317,905.72/476,980.86 = 140,287.24/x
  3. Step 3: Cross multiply
    317,905.72x = 476,980.86 × 140,287.24
  4. Step 4: Simplify right side
    317,905.72x = 66,914,328,382.23
  5. Step 5: Solve for x
    x = 66,914,328,382.23/317,905.72
  6. Step 6: Final answer
    x = 210,484.82

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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.