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Finding the Fourth Proportional to 303,143.55, 454,532.17 and 120,802.40

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Solution

The fourth proportional to 303,143.55, 454,532.17 and 120,802.40 is: 181,130.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    303,143.55 : 454,532.17 = 120,802.40 : x
  2. Step 2: Convert to fraction form
    303,143.55/454,532.17 = 120,802.40/x
  3. Step 3: Cross multiply
    303,143.55x = 454,532.17 × 120,802.40
  4. Step 4: Simplify right side
    303,143.55x = 54,908,577,051.91
  5. Step 5: Solve for x
    x = 54,908,577,051.91/303,143.55
  6. Step 6: Final answer
    x = 181,130.61

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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.