Home / 328,741.34-492,364.67-257,218.25

Finding the Fourth Proportional to 328,741.34, 492,364.67 and 257,218.25

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Solution

The fourth proportional to 328,741.34, 492,364.67 and 257,218.25 is: 385,242.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,741.34 : 492,364.67 = 257,218.25 : x
  2. Step 2: Convert to fraction form
    328,741.34/492,364.67 = 257,218.25/x
  3. Step 3: Cross multiply
    328,741.34x = 492,364.67 × 257,218.25
  4. Step 4: Simplify right side
    328,741.34x = 126,645,175,031.31
  5. Step 5: Solve for x
    x = 126,645,175,031.31/328,741.34
  6. Step 6: Final answer
    x = 385,242.63

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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.