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Finding the Fourth Proportional to 476,195.67, 657,147.96 and 261,339.21

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Solution

The fourth proportional to 476,195.67, 657,147.96 and 261,339.21 is: 360,646.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    476,195.67 : 657,147.96 = 261,339.21 : x
  2. Step 2: Convert to fraction form
    476,195.67/657,147.96 = 261,339.21/x
  3. Step 3: Cross multiply
    476,195.67x = 657,147.96 × 261,339.21
  4. Step 4: Simplify right side
    476,195.67x = 171,738,528,719.51
  5. Step 5: Solve for x
    x = 171,738,528,719.51/476,195.67
  6. Step 6: Final answer
    x = 360,646.98

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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.