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Finding the Fourth Proportional to 272,341.30, 408,074.55 and 256,594.90

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Solution

The fourth proportional to 272,341.30, 408,074.55 and 256,594.90 is: 384,480.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,341.30 : 408,074.55 = 256,594.90 : x
  2. Step 2: Convert to fraction form
    272,341.30/408,074.55 = 256,594.90/x
  3. Step 3: Cross multiply
    272,341.30x = 408,074.55 × 256,594.90
  4. Step 4: Simplify right side
    272,341.30x = 104,709,848,349.80
  5. Step 5: Solve for x
    x = 104,709,848,349.80/272,341.30
  6. Step 6: Final answer
    x = 384,480.24

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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.