Home / 455,088.96-628,018.38-251,141.76

Finding the Fourth Proportional to 455,088.96, 628,018.38 and 251,141.76

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Solution

The fourth proportional to 455,088.96, 628,018.38 and 251,141.76 is: 346,573.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,088.96 : 628,018.38 = 251,141.76 : x
  2. Step 2: Convert to fraction form
    455,088.96/628,018.38 = 251,141.76/x
  3. Step 3: Cross multiply
    455,088.96x = 628,018.38 × 251,141.76
  4. Step 4: Simplify right side
    455,088.96x = 157,721,641,265.55
  5. Step 5: Solve for x
    x = 157,721,641,265.55/455,088.96
  6. Step 6: Final answer
    x = 346,573.21

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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.