Home / 371,702.16-512,939.01-218,749.36

Finding the Fourth Proportional to 371,702.16, 512,939.01 and 218,749.36

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Solution

The fourth proportional to 371,702.16, 512,939.01 and 218,749.36 is: 301,868.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,702.16 : 512,939.01 = 218,749.36 : x
  2. Step 2: Convert to fraction form
    371,702.16/512,939.01 = 218,749.36/x
  3. Step 3: Cross multiply
    371,702.16x = 512,939.01 × 218,749.36
  4. Step 4: Simplify right side
    371,702.16x = 112,205,080,156.53
  5. Step 5: Solve for x
    x = 112,205,080,156.53/371,702.16
  6. Step 6: Final answer
    x = 301,868.25

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.