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Finding the Fourth Proportional to 253,282.83, 379,924.68 and 103,522.98

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Solution

The fourth proportional to 253,282.83, 379,924.68 and 103,522.98 is: 155,284.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,282.83 : 379,924.68 = 103,522.98 : x
  2. Step 2: Convert to fraction form
    253,282.83/379,924.68 = 103,522.98/x
  3. Step 3: Cross multiply
    253,282.83x = 379,924.68 × 103,522.98
  4. Step 4: Simplify right side
    253,282.83x = 39,330,936,862.08
  5. Step 5: Solve for x
    x = 39,330,936,862.08/253,282.83
  6. Step 6: Final answer
    x = 155,284.66

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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.