Home / 420,223.48-579,935.82-238,952.28

Finding the Fourth Proportional to 420,223.48, 579,935.82 and 238,952.28

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Solution

The fourth proportional to 420,223.48, 579,935.82 and 238,952.28 is: 329,769.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,223.48 : 579,935.82 = 238,952.28 : x
  2. Step 2: Convert to fraction form
    420,223.48/579,935.82 = 238,952.28/x
  3. Step 3: Cross multiply
    420,223.48x = 579,935.82 × 238,952.28
  4. Step 4: Simplify right side
    420,223.48x = 138,576,986,442.67
  5. Step 5: Solve for x
    x = 138,576,986,442.67/420,223.48
  6. Step 6: Final answer
    x = 329,769.74

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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.