Home / 280,837.74-421,423.08-103,469.22

Finding the Fourth Proportional to 280,837.74, 421,423.08 and 103,469.22

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Solution

The fourth proportional to 280,837.74, 421,423.08 and 103,469.22 is: 155,265.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,837.74 : 421,423.08 = 103,469.22 : x
  2. Step 2: Convert to fraction form
    280,837.74/421,423.08 = 103,469.22/x
  3. Step 3: Cross multiply
    280,837.74x = 421,423.08 × 103,469.22
  4. Step 4: Simplify right side
    280,837.74x = 43,604,317,377.60
  5. Step 5: Solve for x
    x = 43,604,317,377.60/280,837.74
  6. Step 6: Final answer
    x = 155,265.16

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1.5x scale

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.