Home / 259,298.43-388,943.76-158,126.20

Finding the Fourth Proportional to 259,298.43, 388,943.76 and 158,126.20

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Solution

The fourth proportional to 259,298.43, 388,943.76 and 158,126.20 is: 237,186.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,298.43 : 388,943.76 = 158,126.20 : x
  2. Step 2: Convert to fraction form
    259,298.43/388,943.76 = 158,126.20/x
  3. Step 3: Cross multiply
    259,298.43x = 388,943.76 × 158,126.20
  4. Step 4: Simplify right side
    259,298.43x = 61,502,198,782.51
  5. Step 5: Solve for x
    x = 61,502,198,782.51/259,298.43
  6. Step 6: Final answer
    x = 237,186.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.