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Finding the Fourth Proportional to 153,986.34, 230,987.79 and 48,813.51

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Solution

The fourth proportional to 153,986.34, 230,987.79 and 48,813.51 is: 73,222.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,986.34 : 230,987.79 = 48,813.51 : x
  2. Step 2: Convert to fraction form
    153,986.34/230,987.79 = 48,813.51/x
  3. Step 3: Cross multiply
    153,986.34x = 230,987.79 × 48,813.51
  4. Step 4: Simplify right side
    153,986.34x = 11,275,324,797.04
  5. Step 5: Solve for x
    x = 11,275,324,797.04/153,986.34
  6. Step 6: Final answer
    x = 73,222.89

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1.5x scale

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.