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Finding the Fourth Proportional to 163,819.60, 245,729.22 and 51,509.66

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Solution

The fourth proportional to 163,819.60, 245,729.22 and 51,509.66 is: 77,264.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    163,819.60 : 245,729.22 = 51,509.66 : x
  2. Step 2: Convert to fraction form
    163,819.60/245,729.22 = 51,509.66/x
  3. Step 3: Cross multiply
    163,819.60x = 245,729.22 × 51,509.66
  4. Step 4: Simplify right side
    163,819.60x = 12,657,428,574.27
  5. Step 5: Solve for x
    x = 12,657,428,574.27/163,819.60
  6. Step 6: Final answer
    x = 77,264.43

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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.