Home / 342,333.26-472,260.70-221,513.55

Finding the Fourth Proportional to 342,333.26, 472,260.70 and 221,513.55

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Solution

The fourth proportional to 342,333.26, 472,260.70 and 221,513.55 is: 305,585.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,333.26 : 472,260.70 = 221,513.55 : x
  2. Step 2: Convert to fraction form
    342,333.26/472,260.70 = 221,513.55/x
  3. Step 3: Cross multiply
    342,333.26x = 472,260.70 × 221,513.55
  4. Step 4: Simplify right side
    342,333.26x = 104,612,144,182.49
  5. Step 5: Solve for x
    x = 104,612,144,182.49/342,333.26
  6. Step 6: Final answer
    x = 305,585.69

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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.