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Finding the Fourth Proportional to 409,038.26, 564,499.94 and 247,908.60

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Solution

The fourth proportional to 409,038.26, 564,499.94 and 247,908.60 is: 342,130.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    409,038.26 : 564,499.94 = 247,908.60 : x
  2. Step 2: Convert to fraction form
    409,038.26/564,499.94 = 247,908.60/x
  3. Step 3: Cross multiply
    409,038.26x = 564,499.94 × 247,908.60
  4. Step 4: Simplify right side
    409,038.26x = 139,944,388,585.94
  5. Step 5: Solve for x
    x = 139,944,388,585.94/409,038.26
  6. Step 6: Final answer
    x = 342,130.32

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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.