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Finding the Fourth Proportional to 476,924.96, 715,498.08 and 139,952

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Solution

The fourth proportional to 476,924.96, 715,498.08 and 139,952 is: 209,960.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,924.96 : 715,498.08 = 139,952 : x
  2. Step 2: Convert to fraction form
    476,924.96/715,498.08 = 139,952/x
  3. Step 3: Cross multiply
    476,924.96x = 715,498.08 × 139,952
  4. Step 4: Simplify right side
    476,924.96x = 100,135,387,292.16
  5. Step 5: Solve for x
    x = 100,135,387,292.16/476,924.96
  6. Step 6: Final answer
    x = 209,960.47

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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.