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Finding the Fourth Proportional to 216,980.10, 325,680.30 and 104,739.12

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Solution

The fourth proportional to 216,980.10, 325,680.30 and 104,739.12 is: 157,210.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    216,980.10 : 325,680.30 = 104,739.12 : x
  2. Step 2: Convert to fraction form
    216,980.10/325,680.30 = 104,739.12/x
  3. Step 3: Cross multiply
    216,980.10x = 325,680.30 × 104,739.12
  4. Step 4: Simplify right side
    216,980.10x = 34,111,468,023.34
  5. Step 5: Solve for x
    x = 34,111,468,023.34/216,980.10
  6. Step 6: Final answer
    x = 157,210.12

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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.