Home / 291,210.09-401,803.43-163,839.21

Finding the Fourth Proportional to 291,210.09, 401,803.43 and 163,839.21

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Solution

The fourth proportional to 291,210.09, 401,803.43 and 163,839.21 is: 226,060.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,210.09 : 401,803.43 = 163,839.21 : x
  2. Step 2: Convert to fraction form
    291,210.09/401,803.43 = 163,839.21/x
  3. Step 3: Cross multiply
    291,210.09x = 401,803.43 × 163,839.21
  4. Step 4: Simplify right side
    291,210.09x = 65,831,156,546.49
  5. Step 5: Solve for x
    x = 65,831,156,546.49/291,210.09
  6. Step 6: Final answer
    x = 226,060.70

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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.