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Finding the Fourth Proportional to 369,611.27, 510,032.90 and 208,505.91

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Solution

The fourth proportional to 369,611.27, 510,032.90 and 208,505.91 is: 287,720.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,611.27 : 510,032.90 = 208,505.91 : x
  2. Step 2: Convert to fraction form
    369,611.27/510,032.90 = 208,505.91/x
  3. Step 3: Cross multiply
    369,611.27x = 510,032.90 × 208,505.91
  4. Step 4: Simplify right side
    369,611.27x = 106,344,874,814.53
  5. Step 5: Solve for x
    x = 106,344,874,814.53/369,611.27
  6. Step 6: Final answer
    x = 287,720.87

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1.5x scale

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.