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Finding the Fourth Proportional to 325,567.20, 487,728.72 and 201,151.20

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Solution

The fourth proportional to 325,567.20, 487,728.72 and 201,151.20 is: 301,342.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    325,567.20 : 487,728.72 = 201,151.20 : x
  2. Step 2: Convert to fraction form
    325,567.20/487,728.72 = 201,151.20/x
  3. Step 3: Cross multiply
    325,567.20x = 487,728.72 × 201,151.20
  4. Step 4: Simplify right side
    325,567.20x = 98,107,217,302.46
  5. Step 5: Solve for x
    x = 98,107,217,302.46/325,567.20
  6. Step 6: Final answer
    x = 301,342.45

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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.