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Finding the Fourth Proportional to 300,045.32, 414,069.75 and 170,981.03

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Solution

The fourth proportional to 300,045.32, 414,069.75 and 170,981.03 is: 235,957.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    300,045.32 : 414,069.75 = 170,981.03 : x
  2. Step 2: Convert to fraction form
    300,045.32/414,069.75 = 170,981.03/x
  3. Step 3: Cross multiply
    300,045.32x = 414,069.75 × 170,981.03
  4. Step 4: Simplify right side
    300,045.32x = 70,798,072,346.84
  5. Step 5: Solve for x
    x = 70,798,072,346.84/300,045.32
  6. Step 6: Final answer
    x = 235,957.93

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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.