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Finding the Fourth Proportional to 255,506.05, 352,595.52 and 145,123.92

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Solution

The fourth proportional to 255,506.05, 352,595.52 and 145,123.92 is: 200,269.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,506.05 : 352,595.52 = 145,123.92 : x
  2. Step 2: Convert to fraction form
    255,506.05/352,595.52 = 145,123.92/x
  3. Step 3: Cross multiply
    255,506.05x = 352,595.52 × 145,123.92
  4. Step 4: Simplify right side
    255,506.05x = 51,170,045,339.05
  5. Step 5: Solve for x
    x = 51,170,045,339.05/255,506.05
  6. Step 6: Final answer
    x = 200,269.41

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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.