Home / 505,045.31-757,427.81-140,223.11

Finding the Fourth Proportional to 505,045.31, 757,427.81 and 140,223.11

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Solution

The fourth proportional to 505,045.31, 757,427.81 and 140,223.11 is: 210,295.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    505,045.31 : 757,427.81 = 140,223.11 : x
  2. Step 2: Convert to fraction form
    505,045.31/757,427.81 = 140,223.11/x
  3. Step 3: Cross multiply
    505,045.31x = 757,427.81 × 140,223.11
  4. Step 4: Simplify right side
    505,045.31x = 106,208,878,630.44
  5. Step 5: Solve for x
    x = 106,208,878,630.44/505,045.31
  6. Step 6: Final answer
    x = 210,295.74

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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.