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Finding the Fourth Proportional to 302,826.88, 417,895.68 and 168,688

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Solution

The fourth proportional to 302,826.88, 417,895.68 and 168,688 is: 232,786.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,826.88 : 417,895.68 = 168,688 : x
  2. Step 2: Convert to fraction form
    302,826.88/417,895.68 = 168,688/x
  3. Step 3: Cross multiply
    302,826.88x = 417,895.68 × 168,688
  4. Step 4: Simplify right side
    302,826.88x = 70,493,986,467.84
  5. Step 5: Solve for x
    x = 70,493,986,467.84/302,826.88
  6. Step 6: Final answer
    x = 232,786.42

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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.