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Finding the Fourth Proportional to 369,145.80, 553,718.70 and 362,147.40

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Solution

The fourth proportional to 369,145.80, 553,718.70 and 362,147.40 is: 543,221.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    369,145.80 : 553,718.70 = 362,147.40 : x
  2. Step 2: Convert to fraction form
    369,145.80/553,718.70 = 362,147.40/x
  3. Step 3: Cross multiply
    369,145.80x = 553,718.70 × 362,147.40
  4. Step 4: Simplify right side
    369,145.80x = 200,527,787,536.38
  5. Step 5: Solve for x
    x = 200,527,787,536.38/369,145.80
  6. Step 6: Final answer
    x = 543,221.10

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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.