Home / 455,288.02-628,298.39-251,339.20

Finding the Fourth Proportional to 455,288.02, 628,298.39 and 251,339.20

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Solution

The fourth proportional to 455,288.02, 628,298.39 and 251,339.20 is: 346,848.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,288.02 : 628,298.39 = 251,339.20 : x
  2. Step 2: Convert to fraction form
    455,288.02/628,298.39 = 251,339.20/x
  3. Step 3: Cross multiply
    455,288.02x = 628,298.39 × 251,339.20
  4. Step 4: Simplify right side
    455,288.02x = 157,916,013,761.49
  5. Step 5: Solve for x
    x = 157,916,013,761.49/455,288.02
  6. Step 6: Final answer
    x = 346,848.61

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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.