Home / 351,979.18-485,603.98-231,185.95

Finding the Fourth Proportional to 351,979.18, 485,603.98 and 231,185.95

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Solution

The fourth proportional to 351,979.18, 485,603.98 and 231,185.95 is: 318,953.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,979.18 : 485,603.98 = 231,185.95 : x
  2. Step 2: Convert to fraction form
    351,979.18/485,603.98 = 231,185.95/x
  3. Step 3: Cross multiply
    351,979.18x = 485,603.98 × 231,185.95
  4. Step 4: Simplify right side
    351,979.18x = 112,264,817,440.08
  5. Step 5: Solve for x
    x = 112,264,817,440.08/351,979.18
  6. Step 6: Final answer
    x = 318,953.01

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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.