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Finding the Fourth Proportional to 351,602.85, 485,214.26 and 190,457.90

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Solution

The fourth proportional to 351,602.85, 485,214.26 and 190,457.90 is: 262,833.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,602.85 : 485,214.26 = 190,457.90 : x
  2. Step 2: Convert to fraction form
    351,602.85/485,214.26 = 190,457.90/x
  3. Step 3: Cross multiply
    351,602.85x = 485,214.26 × 190,457.90
  4. Step 4: Simplify right side
    351,602.85x = 92,412,886,345.51
  5. Step 5: Solve for x
    x = 92,412,886,345.51/351,602.85
  6. Step 6: Final answer
    x = 262,833.16

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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.