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Finding the Fourth Proportional to 487,611.44, 731,449.96 and 188,094.50

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Solution

The fourth proportional to 487,611.44, 731,449.96 and 188,094.50 is: 282,154.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,611.44 : 731,449.96 = 188,094.50 : x
  2. Step 2: Convert to fraction form
    487,611.44/731,449.96 = 188,094.50/x
  3. Step 3: Cross multiply
    487,611.44x = 731,449.96 × 188,094.50
  4. Step 4: Simplify right side
    487,611.44x = 137,581,714,501.22
  5. Step 5: Solve for x
    x = 137,581,714,501.22/487,611.44
  6. Step 6: Final answer
    x = 282,154.40

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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.