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Finding the Fourth Proportional to 289,187.30, 433,632.10 and 169,478.21

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Solution

The fourth proportional to 289,187.30, 433,632.10 and 169,478.21 is: 254,130.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    289,187.30 : 433,632.10 = 169,478.21 : x
  2. Step 2: Convert to fraction form
    289,187.30/433,632.10 = 169,478.21/x
  3. Step 3: Cross multiply
    289,187.30x = 433,632.10 × 169,478.21
  4. Step 4: Simplify right side
    289,187.30x = 73,491,192,106.54
  5. Step 5: Solve for x
    x = 73,491,192,106.54/289,187.30
  6. Step 6: Final answer
    x = 254,130.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.