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Finding the Fourth Proportional to 445,088.25, 614,221.79 and 243,879.93

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Solution

The fourth proportional to 445,088.25, 614,221.79 and 243,879.93 is: 336,554.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    445,088.25 : 614,221.79 = 243,879.93 : x
  2. Step 2: Convert to fraction form
    445,088.25/614,221.79 = 243,879.93/x
  3. Step 3: Cross multiply
    445,088.25x = 614,221.79 × 243,879.93
  4. Step 4: Simplify right side
    445,088.25x = 149,796,365,930.28
  5. Step 5: Solve for x
    x = 149,796,365,930.28/445,088.25
  6. Step 6: Final answer
    x = 336,554.30

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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.