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Finding the Fourth Proportional to 315,206.84, 435,021.72 and 175,519.50

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Solution

The fourth proportional to 315,206.84, 435,021.72 and 175,519.50 is: 242,237.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,206.84 : 435,021.72 = 175,519.50 : x
  2. Step 2: Convert to fraction form
    315,206.84/435,021.72 = 175,519.50/x
  3. Step 3: Cross multiply
    315,206.84x = 435,021.72 × 175,519.50
  4. Step 4: Simplify right side
    315,206.84x = 76,354,794,783.54
  5. Step 5: Solve for x
    x = 76,354,794,783.54/315,206.84
  6. Step 6: Final answer
    x = 242,237.12

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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.