Home / 438,051.36-657,082.26-171,937.20

Finding the Fourth Proportional to 438,051.36, 657,082.26 and 171,937.20

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Solution

The fourth proportional to 438,051.36, 657,082.26 and 171,937.20 is: 257,907.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    438,051.36 : 657,082.26 = 171,937.20 : x
  2. Step 2: Convert to fraction form
    438,051.36/657,082.26 = 171,937.20/x
  3. Step 3: Cross multiply
    438,051.36x = 657,082.26 × 171,937.20
  4. Step 4: Simplify right side
    438,051.36x = 112,976,883,954.07
  5. Step 5: Solve for x
    x = 112,976,883,954.07/438,051.36
  6. Step 6: Final answer
    x = 257,907.85

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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.