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Finding the Fourth Proportional to 286,819.20, 430,228.80 and 174,844.80

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Solution

The fourth proportional to 286,819.20, 430,228.80 and 174,844.80 is: 262,267.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,819.20 : 430,228.80 = 174,844.80 : x
  2. Step 2: Convert to fraction form
    286,819.20/430,228.80 = 174,844.80/x
  3. Step 3: Cross multiply
    286,819.20x = 430,228.80 × 174,844.80
  4. Step 4: Simplify right side
    286,819.20x = 75,223,268,490.24
  5. Step 5: Solve for x
    x = 75,223,268,490.24/286,819.20
  6. Step 6: Final answer
    x = 262,267.20

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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.