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Finding the Fourth Proportional to 342,762.66, 472,757.61 and 221,810.64

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Solution

The fourth proportional to 342,762.66, 472,757.61 and 221,810.64 is: 305,933.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,762.66 : 472,757.61 = 221,810.64 : x
  2. Step 2: Convert to fraction form
    342,762.66/472,757.61 = 221,810.64/x
  3. Step 3: Cross multiply
    342,762.66x = 472,757.61 × 221,810.64
  4. Step 4: Simplify right side
    342,762.66x = 104,862,668,038.97
  5. Step 5: Solve for x
    x = 104,862,668,038.97/342,762.66
  6. Step 6: Final answer
    x = 305,933.76

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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.