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Finding the Fourth Proportional to 507,255.75, 700,034.94 and 280,901.25

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Solution

The fourth proportional to 507,255.75, 700,034.94 and 280,901.25 is: 387,655.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    507,255.75 : 700,034.94 = 280,901.25 : x
  2. Step 2: Convert to fraction form
    507,255.75/700,034.94 = 280,901.25/x
  3. Step 3: Cross multiply
    507,255.75x = 700,034.94 × 280,901.25
  4. Step 4: Simplify right side
    507,255.75x = 196,640,689,689.68
  5. Step 5: Solve for x
    x = 196,640,689,689.68/507,255.75
  6. Step 6: Final answer
    x = 387,655.91

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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.