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Finding the Fourth Proportional to 313,553, 432,711.04 and 170,313

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Solution

The fourth proportional to 313,553, 432,711.04 and 170,313 is: 235,036.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,553 : 432,711.04 = 170,313 : x
  2. Step 2: Convert to fraction form
    313,553/432,711.04 = 170,313/x
  3. Step 3: Cross multiply
    313,553x = 432,711.04 × 170,313
  4. Step 4: Simplify right side
    313,553x = 73,696,315,355.52
  5. Step 5: Solve for x
    x = 73,696,315,355.52/313,553
  6. Step 6: Final answer
    x = 235,036.23

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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.