Home / 371,821.32-557,620.20-105,603.48

Finding the Fourth Proportional to 371,821.32, 557,620.20 and 105,603.48

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Solution

The fourth proportional to 371,821.32, 557,620.20 and 105,603.48 is: 158,373.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,821.32 : 557,620.20 = 105,603.48 : x
  2. Step 2: Convert to fraction form
    371,821.32/557,620.20 = 105,603.48/x
  3. Step 3: Cross multiply
    371,821.32x = 557,620.20 × 105,603.48
  4. Step 4: Simplify right side
    371,821.32x = 58,886,633,638.30
  5. Step 5: Solve for x
    x = 58,886,633,638.30/371,821.32
  6. Step 6: Final answer
    x = 158,373.47

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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.