Home / 258,995.26-356,698.65-223,172.20

Finding the Fourth Proportional to 258,995.26, 356,698.65 and 223,172.20

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Solution

The fourth proportional to 258,995.26, 356,698.65 and 223,172.20 is: 307,361.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    258,995.26 : 356,698.65 = 223,172.20 : x
  2. Step 2: Convert to fraction form
    258,995.26/356,698.65 = 223,172.20/x
  3. Step 3: Cross multiply
    258,995.26x = 356,698.65 × 223,172.20
  4. Step 4: Simplify right side
    258,995.26x = 79,605,222,457.53
  5. Step 5: Solve for x
    x = 79,605,222,457.53/258,995.26
  6. Step 6: Final answer
    x = 307,361.70

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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.