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Finding the Fourth Proportional to 302,485, 417,429.32 and 168,380.68

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Solution

The fourth proportional to 302,485, 417,429.32 and 168,380.68 is: 232,365.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,485 : 417,429.32 = 168,380.68 : x
  2. Step 2: Convert to fraction form
    302,485/417,429.32 = 168,380.68/x
  3. Step 3: Cross multiply
    302,485x = 417,429.32 × 168,380.68
  4. Step 4: Simplify right side
    302,485x = 70,287,032,753.54
  5. Step 5: Solve for x
    x = 70,287,032,753.54/302,485
  6. Step 6: Final answer
    x = 232,365.35

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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.