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Finding the Fourth Proportional to 253,714.14, 380,606.76 and 103,975.74

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Solution

The fourth proportional to 253,714.14, 380,606.76 and 103,975.74 is: 155,978.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,714.14 : 380,606.76 = 103,975.74 : x
  2. Step 2: Convert to fraction form
    253,714.14/380,606.76 = 103,975.74/x
  3. Step 3: Cross multiply
    253,714.14x = 380,606.76 × 103,975.74
  4. Step 4: Simplify right side
    253,714.14x = 39,573,869,520.00
  5. Step 5: Solve for x
    x = 39,573,869,520.00/253,714.14
  6. Step 6: Final answer
    x = 155,978.18

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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.