Home / 374,918.12-517,395.38-205,152.20

Finding the Fourth Proportional to 374,918.12, 517,395.38 and 205,152.20

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Solution

The fourth proportional to 374,918.12, 517,395.38 and 205,152.20 is: 283,114.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    374,918.12 : 517,395.38 = 205,152.20 : x
  2. Step 2: Convert to fraction form
    374,918.12/517,395.38 = 205,152.20/x
  3. Step 3: Cross multiply
    374,918.12x = 517,395.38 × 205,152.20
  4. Step 4: Simplify right side
    374,918.12x = 106,144,800,476.84
  5. Step 5: Solve for x
    x = 106,144,800,476.84/374,918.12
  6. Step 6: Final answer
    x = 283,114.62

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1.5x scale

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.