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Finding the Fourth Proportional to 253,482.08, 380,193.94 and 66,508.16

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Solution

The fourth proportional to 253,482.08, 380,193.94 and 66,508.16 is: 99,754.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,482.08 : 380,193.94 = 66,508.16 : x
  2. Step 2: Convert to fraction form
    253,482.08/380,193.94 = 66,508.16/x
  3. Step 3: Cross multiply
    253,482.08x = 380,193.94 × 66,508.16
  4. Step 4: Simplify right side
    253,482.08x = 25,285,999,392.55
  5. Step 5: Solve for x
    x = 25,285,999,392.55/253,482.08
  6. Step 6: Final answer
    x = 99,754.58

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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.