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Finding the Fourth Proportional to 448,455.42, 672,372.09 and 238,240.98

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Solution

The fourth proportional to 448,455.42, 672,372.09 and 238,240.98 is: 357,196.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    448,455.42 : 672,372.09 = 238,240.98 : x
  2. Step 2: Convert to fraction form
    448,455.42/672,372.09 = 238,240.98/x
  3. Step 3: Cross multiply
    448,455.42x = 672,372.09 × 238,240.98
  4. Step 4: Simplify right side
    448,455.42x = 160,186,585,646.25
  5. Step 5: Solve for x
    x = 160,186,585,646.25/448,455.42
  6. Step 6: Final answer
    x = 357,196.23

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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.