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Finding the Fourth Proportional to 250,890.86, 376,529.34 and 145,783.64

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Solution

The fourth proportional to 250,890.86, 376,529.34 and 145,783.64 is: 218,787.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,890.86 : 376,529.34 = 145,783.64 : x
  2. Step 2: Convert to fraction form
    250,890.86/376,529.34 = 145,783.64/x
  3. Step 3: Cross multiply
    250,890.86x = 376,529.34 × 145,783.64
  4. Step 4: Simplify right side
    250,890.86x = 54,891,817,752.00
  5. Step 5: Solve for x
    x = 54,891,817,752.00/250,890.86
  6. Step 6: Final answer
    x = 218,787.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.