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Finding the Fourth Proportional to 490,227.55, 735,602.55 and 190,717.90

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Solution

The fourth proportional to 490,227.55, 735,602.55 and 190,717.90 is: 286,178.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,227.55 : 735,602.55 = 190,717.90 : x
  2. Step 2: Convert to fraction form
    490,227.55/735,602.55 = 190,717.90/x
  3. Step 3: Cross multiply
    490,227.55x = 735,602.55 × 190,717.90
  4. Step 4: Simplify right side
    490,227.55x = 140,292,573,570.65
  5. Step 5: Solve for x
    x = 140,292,573,570.65/490,227.55
  6. Step 6: Final answer
    x = 286,178.48

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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.