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Finding the Fourth Proportional to 343,754.06, 515,645.06 and 163,746.95

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Solution

The fourth proportional to 343,754.06, 515,645.06 and 163,746.95 is: 245,627.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,754.06 : 515,645.06 = 163,746.95 : x
  2. Step 2: Convert to fraction form
    343,754.06/515,645.06 = 163,746.95/x
  3. Step 3: Cross multiply
    343,754.06x = 515,645.06 × 163,746.95
  4. Step 4: Simplify right side
    343,754.06x = 84,435,303,688.71
  5. Step 5: Solve for x
    x = 84,435,303,688.71/343,754.06
  6. Step 6: Final answer
    x = 245,627.08

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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.