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Finding the Fourth Proportional to 302,574.91, 417,556.47 and 166,621.49

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Solution

The fourth proportional to 302,574.91, 417,556.47 and 166,621.49 is: 229,939.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,574.91 : 417,556.47 = 166,621.49 : x
  2. Step 2: Convert to fraction form
    302,574.91/417,556.47 = 166,621.49/x
  3. Step 3: Cross multiply
    302,574.91x = 417,556.47 × 166,621.49
  4. Step 4: Simplify right side
    302,574.91x = 69,573,882,117.75
  5. Step 5: Solve for x
    x = 69,573,882,117.75/302,574.91
  6. Step 6: Final answer
    x = 229,939.37

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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.