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Finding the Fourth Proportional to 153,818.80, 230,533.80 and 137,100.40

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Solution

The fourth proportional to 153,818.80, 230,533.80 and 137,100.40 is: 205,477.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,818.80 : 230,533.80 = 137,100.40 : x
  2. Step 2: Convert to fraction form
    153,818.80/230,533.80 = 137,100.40/x
  3. Step 3: Cross multiply
    153,818.80x = 230,533.80 × 137,100.40
  4. Step 4: Simplify right side
    153,818.80x = 31,606,276,193.52
  5. Step 5: Solve for x
    x = 31,606,276,193.52/153,818.80
  6. Step 6: Final answer
    x = 205,477.33

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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.