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Finding the Fourth Proportional to 313,259.88, 432,287.64 and 170,017.04

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Solution

The fourth proportional to 313,259.88, 432,287.64 and 170,017.04 is: 234,617.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,259.88 : 432,287.64 = 170,017.04 : x
  2. Step 2: Convert to fraction form
    313,259.88/432,287.64 = 170,017.04/x
  3. Step 3: Cross multiply
    313,259.88x = 432,287.64 × 170,017.04
  4. Step 4: Simplify right side
    313,259.88x = 73,496,264,981.39
  5. Step 5: Solve for x
    x = 73,496,264,981.39/313,259.88
  6. Step 6: Final answer
    x = 234,617.55

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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.