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Finding the Fourth Proportional to 153,304.75, 211,566.67 and 85,324.59

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Solution

The fourth proportional to 153,304.75, 211,566.67 and 85,324.59 is: 117,751.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    153,304.75 : 211,566.67 = 85,324.59 : x
  2. Step 2: Convert to fraction form
    153,304.75/211,566.67 = 85,324.59/x
  3. Step 3: Cross multiply
    153,304.75x = 211,566.67 × 85,324.59
  4. Step 4: Simplify right side
    153,304.75x = 18,051,839,162.10
  5. Step 5: Solve for x
    x = 18,051,839,162.10/153,304.75
  6. Step 6: Final answer
    x = 117,751.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.