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Finding the Fourth Proportional to 367,590.90, 551,126.88 and 142,764.06

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Solution

The fourth proportional to 367,590.90, 551,126.88 and 142,764.06 is: 214,045.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    367,590.90 : 551,126.88 = 142,764.06 : x
  2. Step 2: Convert to fraction form
    367,590.90/551,126.88 = 142,764.06/x
  3. Step 3: Cross multiply
    367,590.90x = 551,126.88 × 142,764.06
  4. Step 4: Simplify right side
    367,590.90x = 78,681,110,963.93
  5. Step 5: Solve for x
    x = 78,681,110,963.93/367,590.90
  6. Step 6: Final answer
    x = 214,045.32

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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.