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Finding the Fourth Proportional to 284,857.20, 426,722.60 and 249,836.40

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Solution

The fourth proportional to 284,857.20, 426,722.60 and 249,836.40 is: 374,260.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    284,857.20 : 426,722.60 = 249,836.40 : x
  2. Step 2: Convert to fraction form
    284,857.20/426,722.60 = 249,836.40/x
  3. Step 3: Cross multiply
    284,857.20x = 426,722.60 × 249,836.40
  4. Step 4: Simplify right side
    284,857.20x = 106,610,838,182.64
  5. Step 5: Solve for x
    x = 106,610,838,182.64/284,857.20
  6. Step 6: Final answer
    x = 374,260.64

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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.