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Finding the Fourth Proportional to 225,245.63, 310,838.91 and 123,271.13

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Solution

The fourth proportional to 225,245.63, 310,838.91 and 123,271.13 is: 170,114.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    225,245.63 : 310,838.91 = 123,271.13 : x
  2. Step 2: Convert to fraction form
    225,245.63/310,838.91 = 123,271.13/x
  3. Step 3: Cross multiply
    225,245.63x = 310,838.91 × 123,271.13
  4. Step 4: Simplify right side
    225,245.63x = 38,317,462,129.47
  5. Step 5: Solve for x
    x = 38,317,462,129.47/225,245.63
  6. Step 6: Final answer
    x = 170,114.12

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.