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Finding the Fourth Proportional to 325,663.74, 488,509.31 and 89,005.77

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Solution

The fourth proportional to 325,663.74, 488,509.31 and 89,005.77 is: 133,512.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,663.74 : 488,509.31 = 89,005.77 : x
  2. Step 2: Convert to fraction form
    325,663.74/488,509.31 = 89,005.77/x
  3. Step 3: Cross multiply
    325,663.74x = 488,509.31 × 89,005.77
  4. Step 4: Simplify right side
    325,663.74x = 43,480,147,511.23
  5. Step 5: Solve for x
    x = 43,480,147,511.23/325,663.74
  6. Step 6: Final answer
    x = 133,512.40

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.