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Finding the Fourth Proportional to 408,314.52, 563,339.16 and 247,108.32

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Solution

The fourth proportional to 408,314.52, 563,339.16 and 247,108.32 is: 340,927.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    408,314.52 : 563,339.16 = 247,108.32 : x
  2. Step 2: Convert to fraction form
    408,314.52/563,339.16 = 247,108.32/x
  3. Step 3: Cross multiply
    408,314.52x = 563,339.16 × 247,108.32
  4. Step 4: Simplify right side
    408,314.52x = 139,205,793,417.81
  5. Step 5: Solve for x
    x = 139,205,793,417.81/408,314.52
  6. Step 6: Final answer
    x = 340,927.85

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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.