Home / 331,689.23-458,018.22-314,663.77

Finding the Fourth Proportional to 331,689.23, 458,018.22 and 314,663.77

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Solution

The fourth proportional to 331,689.23, 458,018.22 and 314,663.77 is: 434,508.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    331,689.23 : 458,018.22 = 314,663.77 : x
  2. Step 2: Convert to fraction form
    331,689.23/458,018.22 = 314,663.77/x
  3. Step 3: Cross multiply
    331,689.23x = 458,018.22 × 314,663.77
  4. Step 4: Simplify right side
    331,689.23x = 144,121,737,543.80
  5. Step 5: Solve for x
    x = 144,121,737,543.80/331,689.23
  6. Step 6: Final answer
    x = 434,508.34

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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.