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Finding the Fourth Proportional to 348,400.36, 480,734.76 and 205,108.12

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Solution

The fourth proportional to 348,400.36, 480,734.76 and 205,108.12 is: 283,015.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,400.36 : 480,734.76 = 205,108.12 : x
  2. Step 2: Convert to fraction form
    348,400.36/480,734.76 = 205,108.12/x
  3. Step 3: Cross multiply
    348,400.36x = 480,734.76 × 205,108.12
  4. Step 4: Simplify right side
    348,400.36x = 98,602,602,842.25
  5. Step 5: Solve for x
    x = 98,602,602,842.25/348,400.36
  6. Step 6: Final answer
    x = 283,015.22

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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.