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Finding the Fourth Proportional to 369,746.82, 554,620.25 and 120,428.82

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Solution

The fourth proportional to 369,746.82, 554,620.25 and 120,428.82 is: 180,643.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,746.82 : 554,620.25 = 120,428.82 : x
  2. Step 2: Convert to fraction form
    369,746.82/554,620.25 = 120,428.82/x
  3. Step 3: Cross multiply
    369,746.82x = 554,620.25 × 120,428.82
  4. Step 4: Simplify right side
    369,746.82x = 66,792,262,255.61
  5. Step 5: Solve for x
    x = 66,792,262,255.61/369,746.82
  6. Step 6: Final answer
    x = 180,643.24

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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.