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Finding the Fourth Proportional to 456,955.26, 630,606.63 and 255,750.78

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Solution

The fourth proportional to 456,955.26, 630,606.63 and 255,750.78 is: 352,940.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    456,955.26 : 630,606.63 = 255,750.78 : x
  2. Step 2: Convert to fraction form
    456,955.26/630,606.63 = 255,750.78/x
  3. Step 3: Cross multiply
    456,955.26x = 630,606.63 × 255,750.78
  4. Step 4: Simplify right side
    456,955.26x = 161,278,137,495.67
  5. Step 5: Solve for x
    x = 161,278,137,495.67/456,955.26
  6. Step 6: Final answer
    x = 352,940.76

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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.