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Finding the Fourth Proportional to 403,199.66, 556,415.58 and 219,438.92

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Solution

The fourth proportional to 403,199.66, 556,415.58 and 219,438.92 is: 302,825.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    403,199.66 : 556,415.58 = 219,438.92 : x
  2. Step 2: Convert to fraction form
    403,199.66/556,415.58 = 219,438.92/x
  3. Step 3: Cross multiply
    403,199.66x = 556,415.58 × 219,438.92
  4. Step 4: Simplify right side
    403,199.66x = 122,099,233,946.37
  5. Step 5: Solve for x
    x = 122,099,233,946.37/403,199.66
  6. Step 6: Final answer
    x = 302,825.74

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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.