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Finding the Fourth Proportional to 302,810.40, 453,996.90 and 169,731.45

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Solution

The fourth proportional to 302,810.40, 453,996.90 and 169,731.45 is: 254,474.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    302,810.40 : 453,996.90 = 169,731.45 : x
  2. Step 2: Convert to fraction form
    302,810.40/453,996.90 = 169,731.45/x
  3. Step 3: Cross multiply
    302,810.40x = 453,996.90 × 169,731.45
  4. Step 4: Simplify right side
    302,810.40x = 77,057,552,132.51
  5. Step 5: Solve for x
    x = 77,057,552,132.51/302,810.40
  6. Step 6: Final answer
    x = 254,474.59

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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.