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Finding the Fourth Proportional to 229,643.80, 343,851.30 and 146,085.40

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Solution

The fourth proportional to 229,643.80, 343,851.30 and 146,085.40 is: 218,737.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    229,643.80 : 343,851.30 = 146,085.40 : x
  2. Step 2: Convert to fraction form
    229,643.80/343,851.30 = 146,085.40/x
  3. Step 3: Cross multiply
    229,643.80x = 343,851.30 × 146,085.40
  4. Step 4: Simplify right side
    229,643.80x = 50,231,654,701.02
  5. Step 5: Solve for x
    x = 50,231,654,701.02/229,643.80
  6. Step 6: Final answer
    x = 218,737.26

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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.