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Finding the Fourth Proportional to 253,999.10, 380,969.47 and 67,025.18

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Solution

The fourth proportional to 253,999.10, 380,969.47 and 67,025.18 is: 100,530.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,999.10 : 380,969.47 = 67,025.18 : x
  2. Step 2: Convert to fraction form
    253,999.10/380,969.47 = 67,025.18/x
  3. Step 3: Cross multiply
    253,999.10x = 380,969.47 × 67,025.18
  4. Step 4: Simplify right side
    253,999.10x = 25,534,547,301.25
  5. Step 5: Solve for x
    x = 25,534,547,301.25/253,999.10
  6. Step 6: Final answer
    x = 100,530.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.