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Finding the Fourth Proportional to 302,990.08, 418,107.51 and 167,017

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Solution

The fourth proportional to 302,990.08, 418,107.51 and 167,017 is: 230,473.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,990.08 : 418,107.51 = 167,017 : x
  2. Step 2: Convert to fraction form
    302,990.08/418,107.51 = 167,017/x
  3. Step 3: Cross multiply
    302,990.08x = 418,107.51 × 167,017
  4. Step 4: Simplify right side
    302,990.08x = 69,831,061,997.67
  5. Step 5: Solve for x
    x = 69,831,061,997.67/302,990.08
  6. Step 6: Final answer
    x = 230,473.10

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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.