Home / 290,172.24-435,355.56-112,685.04

Finding the Fourth Proportional to 290,172.24, 435,355.56 and 112,685.04

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Solution

The fourth proportional to 290,172.24, 435,355.56 and 112,685.04 is: 169,065.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    290,172.24 : 435,355.56 = 112,685.04 : x
  2. Step 2: Convert to fraction form
    290,172.24/435,355.56 = 112,685.04/x
  3. Step 3: Cross multiply
    290,172.24x = 435,355.56 × 112,685.04
  4. Step 4: Simplify right side
    290,172.24x = 49,058,058,692.82
  5. Step 5: Solve for x
    x = 49,058,058,692.82/290,172.24
  6. Step 6: Final answer
    x = 169,065.31

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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.