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Finding the Fourth Proportional to 153,154.58, 229,701.59 and 145,559.51

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Solution

The fourth proportional to 153,154.58, 229,701.59 and 145,559.51 is: 218,310.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,154.58 : 229,701.59 = 145,559.51 : x
  2. Step 2: Convert to fraction form
    153,154.58/229,701.59 = 145,559.51/x
  3. Step 3: Cross multiply
    153,154.58x = 229,701.59 × 145,559.51
  4. Step 4: Simplify right side
    153,154.58x = 33,435,251,709.62
  5. Step 5: Solve for x
    x = 33,435,251,709.62/153,154.58
  6. Step 6: Final answer
    x = 218,310.49

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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.