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Finding the Fourth Proportional to 310,263.27, 428,163.08 and 176,127.27

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Solution

The fourth proportional to 310,263.27, 428,163.08 and 176,127.27 is: 243,055.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    310,263.27 : 428,163.08 = 176,127.27 : x
  2. Step 2: Convert to fraction form
    310,263.27/428,163.08 = 176,127.27/x
  3. Step 3: Cross multiply
    310,263.27x = 428,163.08 × 176,127.27
  4. Step 4: Simplify right side
    310,263.27x = 75,411,193,514.56
  5. Step 5: Solve for x
    x = 75,411,193,514.56/310,263.27
  6. Step 6: Final answer
    x = 243,055.50

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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.