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Finding the Fourth Proportional to 312,027.32, 430,597.77 and 168,787.49

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Solution

The fourth proportional to 312,027.32, 430,597.77 and 168,787.49 is: 232,926.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,027.32 : 430,597.77 = 168,787.49 : x
  2. Step 2: Convert to fraction form
    312,027.32/430,597.77 = 168,787.49/x
  3. Step 3: Cross multiply
    312,027.32x = 430,597.77 × 168,787.49
  4. Step 4: Simplify right side
    312,027.32x = 72,679,514,644.91
  5. Step 5: Solve for x
    x = 72,679,514,644.91/312,027.32
  6. Step 6: Final answer
    x = 232,926.77

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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.