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Finding the Fourth Proportional to 187,817.80, 281,208.30 and 146,345.80

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Solution

The fourth proportional to 187,817.80, 281,208.30 and 146,345.80 is: 219,114.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    187,817.80 : 281,208.30 = 146,345.80 : x
  2. Step 2: Convert to fraction form
    187,817.80/281,208.30 = 146,345.80/x
  3. Step 3: Cross multiply
    187,817.80x = 281,208.30 × 146,345.80
  4. Step 4: Simplify right side
    187,817.80x = 41,153,653,630.14
  5. Step 5: Solve for x
    x = 41,153,653,630.14/187,817.80
  6. Step 6: Final answer
    x = 219,114.77

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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.