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Finding the Fourth Proportional to 336,424.80, 505,220.40 and 325,927.20

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Solution

The fourth proportional to 336,424.80, 505,220.40 and 325,927.20 is: 489,455.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,424.80 : 505,220.40 = 325,927.20 : x
  2. Step 2: Convert to fraction form
    336,424.80/505,220.40 = 325,927.20/x
  3. Step 3: Cross multiply
    336,424.80x = 505,220.40 × 325,927.20
  4. Step 4: Simplify right side
    336,424.80x = 164,665,070,354.88
  5. Step 5: Solve for x
    x = 164,665,070,354.88/336,424.80
  6. Step 6: Final answer
    x = 489,455.80

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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.