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Finding the Fourth Proportional to 487,674.51, 731,536.25 and 155,276.43

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Solution

The fourth proportional to 487,674.51, 731,536.25 and 155,276.43 is: 232,922.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    487,674.51 : 731,536.25 = 155,276.43 : x
  2. Step 2: Convert to fraction form
    487,674.51/731,536.25 = 155,276.43/x
  3. Step 3: Cross multiply
    487,674.51x = 731,536.25 × 155,276.43
  4. Step 4: Simplify right side
    487,674.51x = 113,590,336,539.21
  5. Step 5: Solve for x
    x = 113,590,336,539.21/487,674.51
  6. Step 6: Final answer
    x = 232,922.44

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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.