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Finding the Fourth Proportional to 253,685, 350,090.96 and 144,787.15

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Solution

The fourth proportional to 253,685, 350,090.96 and 144,787.15 is: 199,809.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,685 : 350,090.96 = 144,787.15 : x
  2. Step 2: Convert to fraction form
    253,685/350,090.96 = 144,787.15/x
  3. Step 3: Cross multiply
    253,685x = 350,090.96 × 144,787.15
  4. Step 4: Simplify right side
    253,685x = 50,688,672,339.16
  5. Step 5: Solve for x
    x = 50,688,672,339.16/253,685
  6. Step 6: Final answer
    x = 199,809.50

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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.