Home / 375,696.72-563,485.14-138,985.56

Finding the Fourth Proportional to 375,696.72, 563,485.14 and 138,985.56

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Solution

The fourth proportional to 375,696.72, 563,485.14 and 138,985.56 is: 208,456.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    375,696.72 : 563,485.14 = 138,985.56 : x
  2. Step 2: Convert to fraction form
    375,696.72/563,485.14 = 138,985.56/x
  3. Step 3: Cross multiply
    375,696.72x = 563,485.14 × 138,985.56
  4. Step 4: Simplify right side
    375,696.72x = 78,316,297,734.58
  5. Step 5: Solve for x
    x = 78,316,297,734.58/375,696.72
  6. Step 6: Final answer
    x = 208,456.17

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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.