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Finding the Fourth Proportional to 255,709.34, 353,030.22 and 227,336.66

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Solution

The fourth proportional to 255,709.34, 353,030.22 and 227,336.66 is: 313,859.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,709.34 : 353,030.22 = 227,336.66 : x
  2. Step 2: Convert to fraction form
    255,709.34/353,030.22 = 227,336.66/x
  3. Step 3: Cross multiply
    255,709.34x = 353,030.22 × 227,336.66
  4. Step 4: Simplify right side
    255,709.34x = 80,256,709,328.71
  5. Step 5: Solve for x
    x = 80,256,709,328.71/255,709.34
  6. Step 6: Final answer
    x = 313,859.13

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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.