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Finding the Fourth Proportional to 340,722.86, 510,758.91 and 127,432.94

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Solution

The fourth proportional to 340,722.86, 510,758.91 and 127,432.94 is: 191,027.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,722.86 : 510,758.91 = 127,432.94 : x
  2. Step 2: Convert to fraction form
    340,722.86/510,758.91 = 127,432.94/x
  3. Step 3: Cross multiply
    340,722.86x = 510,758.91 × 127,432.94
  4. Step 4: Simplify right side
    340,722.86x = 65,087,506,978.70
  5. Step 5: Solve for x
    x = 65,087,506,978.70/340,722.86
  6. Step 6: Final answer
    x = 191,027.71

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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.