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Finding the Fourth Proportional to 348,454.16, 480,887.72 and 205,309.60

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Solution

The fourth proportional to 348,454.16, 480,887.72 and 205,309.60 is: 283,339.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,454.16 : 480,887.72 = 205,309.60 : x
  2. Step 2: Convert to fraction form
    348,454.16/480,887.72 = 205,309.60/x
  3. Step 3: Cross multiply
    348,454.16x = 480,887.72 × 205,309.60
  4. Step 4: Simplify right side
    348,454.16x = 98,730,865,438.11
  5. Step 5: Solve for x
    x = 98,730,865,438.11/348,454.16
  6. Step 6: Final answer
    x = 283,339.61

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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.