Home / 374,810.13-517,238.61-221,971.62

Finding the Fourth Proportional to 374,810.13, 517,238.61 and 221,971.62

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Solution

The fourth proportional to 374,810.13, 517,238.61 and 221,971.62 is: 306,321.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,810.13 : 517,238.61 = 221,971.62 : x
  2. Step 2: Convert to fraction form
    374,810.13/517,238.61 = 221,971.62/x
  3. Step 3: Cross multiply
    374,810.13x = 517,238.61 × 221,971.62
  4. Step 4: Simplify right side
    374,810.13x = 114,812,292,188.25
  5. Step 5: Solve for x
    x = 114,812,292,188.25/374,810.13
  6. Step 6: Final answer
    x = 306,321.21

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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.