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Finding the Fourth Proportional to 343,181.75, 473,430.62 and 215,927.51

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Solution

The fourth proportional to 343,181.75, 473,430.62 and 215,927.51 is: 297,879.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,181.75 : 473,430.62 = 215,927.51 : x
  2. Step 2: Convert to fraction form
    343,181.75/473,430.62 = 215,927.51/x
  3. Step 3: Cross multiply
    343,181.75x = 473,430.62 × 215,927.51
  4. Step 4: Simplify right side
    343,181.75x = 102,226,693,107.02
  5. Step 5: Solve for x
    x = 102,226,693,107.02/343,181.75
  6. Step 6: Final answer
    x = 297,879.17

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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.