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Finding the Fourth Proportional to 342,346.53, 472,279.02 and 221,526.86

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Solution

The fourth proportional to 342,346.53, 472,279.02 and 221,526.86 is: 305,604.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,346.53 : 472,279.02 = 221,526.86 : x
  2. Step 2: Convert to fraction form
    342,346.53/472,279.02 = 221,526.86/x
  3. Step 3: Cross multiply
    342,346.53x = 472,279.02 × 221,526.86
  4. Step 4: Simplify right side
    342,346.53x = 104,622,488,344.48
  5. Step 5: Solve for x
    x = 104,622,488,344.48/342,346.53
  6. Step 6: Final answer
    x = 305,604.06

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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.