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Finding the Fourth Proportional to 371,069.20, 512,439.24 and 256,641.04

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Solution

The fourth proportional to 371,069.20, 512,439.24 and 256,641.04 is: 354,416.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    371,069.20 : 512,439.24 = 256,641.04 : x
  2. Step 2: Convert to fraction form
    371,069.20/512,439.24 = 256,641.04/x
  3. Step 3: Cross multiply
    371,069.20x = 512,439.24 × 256,641.04
  4. Step 4: Simplify right side
    371,069.20x = 131,512,939,490.41
  5. Step 5: Solve for x
    x = 131,512,939,490.41/371,069.20
  6. Step 6: Final answer
    x = 354,416.21

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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.