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Finding the Fourth Proportional to 220,030.86, 303,643.17 and 119,428.86

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Solution

The fourth proportional to 220,030.86, 303,643.17 and 119,428.86 is: 164,812.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    220,030.86 : 303,643.17 = 119,428.86 : x
  2. Step 2: Convert to fraction form
    220,030.86/303,643.17 = 119,428.86/x
  3. Step 3: Cross multiply
    220,030.86x = 303,643.17 × 119,428.86
  4. Step 4: Simplify right side
    220,030.86x = 36,263,757,639.89
  5. Step 5: Solve for x
    x = 36,263,757,639.89/220,030.86
  6. Step 6: Final answer
    x = 164,812.14

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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.