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Finding the Fourth Proportional to 436,343.28, 602,141.76 and 245,351.76

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Solution

The fourth proportional to 436,343.28, 602,141.76 and 245,351.76 is: 338,578.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    436,343.28 : 602,141.76 = 245,351.76 : x
  2. Step 2: Convert to fraction form
    436,343.28/602,141.76 = 245,351.76/x
  3. Step 3: Cross multiply
    436,343.28x = 602,141.76 × 245,351.76
  4. Step 4: Simplify right side
    436,343.28x = 147,736,540,585.50
  5. Step 5: Solve for x
    x = 147,736,540,585.50/436,343.28
  6. Step 6: Final answer
    x = 338,578.70

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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.