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Finding the Fourth Proportional to 253,583.08, 380,411.70 and 76,104.12

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Solution

The fourth proportional to 253,583.08, 380,411.70 and 76,104.12 is: 114,167.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,583.08 : 380,411.70 = 76,104.12 : x
  2. Step 2: Convert to fraction form
    253,583.08/380,411.70 = 76,104.12/x
  3. Step 3: Cross multiply
    253,583.08x = 380,411.70 × 76,104.12
  4. Step 4: Simplify right side
    253,583.08x = 28,950,897,666.20
  5. Step 5: Solve for x
    x = 28,950,897,666.20/253,583.08
  6. Step 6: Final answer
    x = 114,167.31

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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.