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Finding the Fourth Proportional to 482,125.77, 665,328.33 and 278,174.25

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Solution

The fourth proportional to 482,125.77, 665,328.33 and 278,174.25 is: 383,877.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    482,125.77 : 665,328.33 = 278,174.25 : x
  2. Step 2: Convert to fraction form
    482,125.77/665,328.33 = 278,174.25/x
  3. Step 3: Cross multiply
    482,125.77x = 665,328.33 × 278,174.25
  4. Step 4: Simplify right side
    482,125.77x = 185,077,209,201.50
  5. Step 5: Solve for x
    x = 185,077,209,201.50/482,125.77
  6. Step 6: Final answer
    x = 383,877.45

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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.