Home / 386,967.72-533,997.49-214,896.61

Finding the Fourth Proportional to 386,967.72, 533,997.49 and 214,896.61

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Solution

The fourth proportional to 386,967.72, 533,997.49 and 214,896.61 is: 296,547.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    386,967.72 : 533,997.49 = 214,896.61 : x
  2. Step 2: Convert to fraction form
    386,967.72/533,997.49 = 214,896.61/x
  3. Step 3: Cross multiply
    386,967.72x = 533,997.49 × 214,896.61
  4. Step 4: Simplify right side
    386,967.72x = 114,754,250,349.51
  5. Step 5: Solve for x
    x = 114,754,250,349.51/386,967.72
  6. Step 6: Final answer
    x = 296,547.35

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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.