Home / 431,981.58-648,261.60-179,262.32

Finding the Fourth Proportional to 431,981.58, 648,261.60 and 179,262.32

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Solution

The fourth proportional to 431,981.58, 648,261.60 and 179,262.32 is: 269,013.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    431,981.58 : 648,261.60 = 179,262.32 : x
  2. Step 2: Convert to fraction form
    431,981.58/648,261.60 = 179,262.32/x
  3. Step 3: Cross multiply
    431,981.58x = 648,261.60 × 179,262.32
  4. Step 4: Simplify right side
    431,981.58x = 116,208,875,981.90
  5. Step 5: Solve for x
    x = 116,208,875,981.90/431,981.58
  6. Step 6: Final answer
    x = 269,013.50

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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.