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Finding the Fourth Proportional to 220,030.12, 303,636.90 and 119,428.12

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Solution

The fourth proportional to 220,030.12, 303,636.90 and 119,428.12 is: 164,808.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,030.12 : 303,636.90 = 119,428.12 : x
  2. Step 2: Convert to fraction form
    220,030.12/303,636.90 = 119,428.12/x
  3. Step 3: Cross multiply
    220,030.12x = 303,636.90 × 119,428.12
  4. Step 4: Simplify right side
    220,030.12x = 36,262,784,129.63
  5. Step 5: Solve for x
    x = 36,262,784,129.63/220,030.12
  6. Step 6: Final answer
    x = 164,808.27

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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.