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Finding the Fourth Proportional to 295,479.51, 443,357.72 and 145,638.09

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Solution

The fourth proportional to 295,479.51, 443,357.72 and 145,638.09 is: 218,525.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    295,479.51 : 443,357.72 = 145,638.09 : x
  2. Step 2: Convert to fraction form
    295,479.51/443,357.72 = 145,638.09/x
  3. Step 3: Cross multiply
    295,479.51x = 443,357.72 × 145,638.09
  4. Step 4: Simplify right side
    295,479.51x = 64,569,770,799.36
  5. Step 5: Solve for x
    x = 64,569,770,799.36/295,479.51
  6. Step 6: Final answer
    x = 218,525.38

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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.