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Finding the Fourth Proportional to 369,613.91, 510,160.14 and 208,561.86

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Solution

The fourth proportional to 369,613.91, 510,160.14 and 208,561.86 is: 287,867.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,613.91 : 510,160.14 = 208,561.86 : x
  2. Step 2: Convert to fraction form
    369,613.91/510,160.14 = 208,561.86/x
  3. Step 3: Cross multiply
    369,613.91x = 510,160.14 × 208,561.86
  4. Step 4: Simplify right side
    369,613.91x = 106,399,947,696.26
  5. Step 5: Solve for x
    x = 106,399,947,696.26/369,613.91
  6. Step 6: Final answer
    x = 287,867.81

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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.