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Finding the Fourth Proportional to 450,860.91, 622,176 and 257,265.11

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Solution

The fourth proportional to 450,860.91, 622,176 and 257,265.11 is: 355,018.97

Step by Step Solution

  1. Step 1: Write the proportion equation
    450,860.91 : 622,176 = 257,265.11 : x
  2. Step 2: Convert to fraction form
    450,860.91/622,176 = 257,265.11/x
  3. Step 3: Cross multiply
    450,860.91x = 622,176 × 257,265.11
  4. Step 4: Simplify right side
    450,860.91x = 160,064,173,968.48
  5. Step 5: Solve for x
    x = 160,064,173,968.48/450,860.91
  6. Step 6: Final answer
    x = 355,018.97

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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.