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Finding the Fourth Proportional to 228,613.83, 315,491.57 and 136,827.63

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Solution

The fourth proportional to 228,613.83, 315,491.57 and 136,827.63 is: 188,824.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    228,613.83 : 315,491.57 = 136,827.63 : x
  2. Step 2: Convert to fraction form
    228,613.83/315,491.57 = 136,827.63/x
  3. Step 3: Cross multiply
    228,613.83x = 315,491.57 × 136,827.63
  4. Step 4: Simplify right side
    228,613.83x = 43,167,963,123.94
  5. Step 5: Solve for x
    x = 43,167,963,123.94/228,613.83
  6. Step 6: Final answer
    x = 188,824.81

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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.