Home / 420,224.48-579,937.20-238,953.28

Finding the Fourth Proportional to 420,224.48, 579,937.20 and 238,953.28

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Solution

The fourth proportional to 420,224.48, 579,937.20 and 238,953.28 is: 329,771.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    420,224.48 : 579,937.20 = 238,953.28 : x
  2. Step 2: Convert to fraction form
    420,224.48/579,937.20 = 238,953.28/x
  3. Step 3: Cross multiply
    420,224.48x = 579,937.20 × 238,953.28
  4. Step 4: Simplify right side
    420,224.48x = 138,577,896,134.02
  5. Step 5: Solve for x
    x = 138,577,896,134.02/420,224.48
  6. Step 6: Final answer
    x = 329,771.12

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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.