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Finding the Fourth Proportional to 284,879.20, 426,755.60 and 249,858.40

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Solution

The fourth proportional to 284,879.20, 426,755.60 and 249,858.40 is: 374,293.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,879.20 : 426,755.60 = 249,858.40 : x
  2. Step 2: Convert to fraction form
    284,879.20/426,755.60 = 249,858.40/x
  3. Step 3: Cross multiply
    284,879.20x = 426,755.60 × 249,858.40
  4. Step 4: Simplify right side
    284,879.20x = 106,628,471,407.04
  5. Step 5: Solve for x
    x = 106,628,471,407.04/284,879.20
  6. Step 6: Final answer
    x = 374,293.64

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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.