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Finding the Fourth Proportional to 406,998.80, 610,498.20 and 111,510.80

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Solution

The fourth proportional to 406,998.80, 610,498.20 and 111,510.80 is: 167,266.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    406,998.80 : 610,498.20 = 111,510.80 : x
  2. Step 2: Convert to fraction form
    406,998.80/610,498.20 = 111,510.80/x
  3. Step 3: Cross multiply
    406,998.80x = 610,498.20 × 111,510.80
  4. Step 4: Simplify right side
    406,998.80x = 68,077,142,680.56
  5. Step 5: Solve for x
    x = 68,077,142,680.56/406,998.80
  6. Step 6: Final answer
    x = 167,266.20

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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.