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Finding the Fourth Proportional to 350,477.91, 483,647.97 and 221,485.32

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Solution

The fourth proportional to 350,477.91, 483,647.97 and 221,485.32 is: 305,642.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,477.91 : 483,647.97 = 221,485.32 : x
  2. Step 2: Convert to fraction form
    350,477.91/483,647.97 = 221,485.32/x
  3. Step 3: Cross multiply
    350,477.91x = 483,647.97 × 221,485.32
  4. Step 4: Simplify right side
    350,477.91x = 107,120,925,402.80
  5. Step 5: Solve for x
    x = 107,120,925,402.80/350,477.91
  6. Step 6: Final answer
    x = 305,642.45

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.