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Finding the Fourth Proportional to 376,886.54, 520,123.37 and 213,574.70

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Solution

The fourth proportional to 376,886.54, 520,123.37 and 213,574.70 is: 294,744.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    376,886.54 : 520,123.37 = 213,574.70 : x
  2. Step 2: Convert to fraction form
    376,886.54/520,123.37 = 213,574.70/x
  3. Step 3: Cross multiply
    376,886.54x = 520,123.37 × 213,574.70
  4. Step 4: Simplify right side
    376,886.54x = 111,085,192,710.74
  5. Step 5: Solve for x
    x = 111,085,192,710.74/376,886.54
  6. Step 6: Final answer
    x = 294,744.39

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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.