Home / 316,939.98-474,776.20-190,511.64

Finding the Fourth Proportional to 316,939.98, 474,776.20 and 190,511.64

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Solution

The fourth proportional to 316,939.98, 474,776.20 and 190,511.64 is: 285,386.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,939.98 : 474,776.20 = 190,511.64 : x
  2. Step 2: Convert to fraction form
    316,939.98/474,776.20 = 190,511.64/x
  3. Step 3: Cross multiply
    316,939.98x = 474,776.20 × 190,511.64
  4. Step 4: Simplify right side
    316,939.98x = 90,450,392,733.11
  5. Step 5: Solve for x
    x = 90,450,392,733.11/316,939.98
  6. Step 6: Final answer
    x = 285,386.50

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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.