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Finding the Fourth Proportional to 288,216.60, 432,324.90 and 199,643.10

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Solution

The fourth proportional to 288,216.60, 432,324.90 and 199,643.10 is: 299,464.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,216.60 : 432,324.90 = 199,643.10 : x
  2. Step 2: Convert to fraction form
    288,216.60/432,324.90 = 199,643.10/x
  3. Step 3: Cross multiply
    288,216.60x = 432,324.90 × 199,643.10
  4. Step 4: Simplify right side
    288,216.60x = 86,310,683,243.19
  5. Step 5: Solve for x
    x = 86,310,683,243.19/288,216.60
  6. Step 6: Final answer
    x = 299,464.65

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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.