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Finding the Fourth Proportional to 255,271.80, 382,907.70 and 148,546.20

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Solution

The fourth proportional to 255,271.80, 382,907.70 and 148,546.20 is: 222,819.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,271.80 : 382,907.70 = 148,546.20 : x
  2. Step 2: Convert to fraction form
    255,271.80/382,907.70 = 148,546.20/x
  3. Step 3: Cross multiply
    255,271.80x = 382,907.70 × 148,546.20
  4. Step 4: Simplify right side
    255,271.80x = 56,879,483,785.74
  5. Step 5: Solve for x
    x = 56,879,483,785.74/255,271.80
  6. Step 6: Final answer
    x = 222,819.30

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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.