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Finding the Fourth Proportional to 289,559.49, 399,606.85 and 167,006.30

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Solution

The fourth proportional to 289,559.49, 399,606.85 and 167,006.30 is: 230,477.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,559.49 : 399,606.85 = 167,006.30 : x
  2. Step 2: Convert to fraction form
    289,559.49/399,606.85 = 167,006.30/x
  3. Step 3: Cross multiply
    289,559.49x = 399,606.85 × 167,006.30
  4. Step 4: Simplify right side
    289,559.49x = 66,736,861,473.16
  5. Step 5: Solve for x
    x = 66,736,861,473.16/289,559.49
  6. Step 6: Final answer
    x = 230,477.20

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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.