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Finding the Fourth Proportional to 253,283.58, 379,925.81 and 103,523.74

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Solution

The fourth proportional to 253,283.58, 379,925.81 and 103,523.74 is: 155,285.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,283.58 : 379,925.81 = 103,523.74 : x
  2. Step 2: Convert to fraction form
    253,283.58/379,925.81 = 103,523.74/x
  3. Step 3: Cross multiply
    253,283.58x = 379,925.81 × 103,523.74
  4. Step 4: Simplify right side
    253,283.58x = 39,331,340,082.72
  5. Step 5: Solve for x
    x = 39,331,340,082.72/253,283.58
  6. Step 6: Final answer
    x = 155,285.79

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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.