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Finding the Fourth Proportional to 355,147.60, 532,721.40 and 299,160.40

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Solution

The fourth proportional to 355,147.60, 532,721.40 and 299,160.40 is: 448,740.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    355,147.60 : 532,721.40 = 299,160.40 : x
  2. Step 2: Convert to fraction form
    355,147.60/532,721.40 = 299,160.40/x
  3. Step 3: Cross multiply
    355,147.60x = 532,721.40 × 299,160.40
  4. Step 4: Simplify right side
    355,147.60x = 159,369,147,112.56
  5. Step 5: Solve for x
    x = 159,369,147,112.56/355,147.60
  6. Step 6: Final answer
    x = 448,740.60

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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.