Home / 336,939.96-505,407.90-84,219.18

Finding the Fourth Proportional to 336,939.96, 505,407.90 and 84,219.18

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Solution

The fourth proportional to 336,939.96, 505,407.90 and 84,219.18 is: 126,328.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    336,939.96 : 505,407.90 = 84,219.18 : x
  2. Step 2: Convert to fraction form
    336,939.96/505,407.90 = 84,219.18/x
  3. Step 3: Cross multiply
    336,939.96x = 505,407.90 × 84,219.18
  4. Step 4: Simplify right side
    336,939.96x = 42,565,038,903.52
  5. Step 5: Solve for x
    x = 42,565,038,903.52/336,939.96
  6. Step 6: Final answer
    x = 126,328.26

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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.