Home / 420,902.22-581,036.29-268,149.89

Finding the Fourth Proportional to 420,902.22, 581,036.29 and 268,149.89

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Solution

The fourth proportional to 420,902.22, 581,036.29 and 268,149.89 is: 370,168.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,902.22 : 581,036.29 = 268,149.89 : x
  2. Step 2: Convert to fraction form
    420,902.22/581,036.29 = 268,149.89/x
  3. Step 3: Cross multiply
    420,902.22x = 581,036.29 × 268,149.89
  4. Step 4: Simplify right side
    420,902.22x = 155,804,818,031.72
  5. Step 5: Solve for x
    x = 155,804,818,031.72/420,902.22
  6. Step 6: Final answer
    x = 370,168.67

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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.