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Finding the Fourth Proportional to 207,430.65, 311,194.10 and 65,272.23

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Solution

The fourth proportional to 207,430.65, 311,194.10 and 65,272.23 is: 97,923.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,430.65 : 311,194.10 = 65,272.23 : x
  2. Step 2: Convert to fraction form
    207,430.65/311,194.10 = 65,272.23/x
  3. Step 3: Cross multiply
    207,430.65x = 311,194.10 × 65,272.23
  4. Step 4: Simplify right side
    207,430.65x = 20,312,333,033.02
  5. Step 5: Solve for x
    x = 20,312,333,033.02/207,430.65
  6. Step 6: Final answer
    x = 97,923.49

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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.