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Finding the Fourth Proportional to 342,469.40, 472,740.23 and 306,597.06

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Solution

The fourth proportional to 342,469.40, 472,740.23 and 306,597.06 is: 423,222.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,469.40 : 472,740.23 = 306,597.06 : x
  2. Step 2: Convert to fraction form
    342,469.40/472,740.23 = 306,597.06/x
  3. Step 3: Cross multiply
    342,469.40x = 472,740.23 × 306,597.06
  4. Step 4: Simplify right side
    342,469.40x = 144,940,765,428.22
  5. Step 5: Solve for x
    x = 144,940,765,428.22/342,469.40
  6. Step 6: Final answer
    x = 423,222.53

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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.