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Finding the Fourth Proportional to 340,291, 510,397.59 and 90,992.44

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Solution

The fourth proportional to 340,291, 510,397.59 and 90,992.44 is: 136,478.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,291 : 510,397.59 = 90,992.44 : x
  2. Step 2: Convert to fraction form
    340,291/510,397.59 = 90,992.44/x
  3. Step 3: Cross multiply
    340,291x = 510,397.59 × 90,992.44
  4. Step 4: Simplify right side
    340,291x = 46,442,322,084.22
  5. Step 5: Solve for x
    x = 46,442,322,084.22/340,291
  6. Step 6: Final answer
    x = 136,478.26

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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.