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Finding the Fourth Proportional to 318,284.37, 440,389.02 and 277,533.47

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Solution

The fourth proportional to 318,284.37, 440,389.02 and 277,533.47 is: 384,004.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    318,284.37 : 440,389.02 = 277,533.47 : x
  2. Step 2: Convert to fraction form
    318,284.37/440,389.02 = 277,533.47/x
  3. Step 3: Cross multiply
    318,284.37x = 440,389.02 × 277,533.47
  4. Step 4: Simplify right side
    318,284.37x = 122,222,693,360.76
  5. Step 5: Solve for x
    x = 122,222,693,360.76/318,284.37
  6. Step 6: Final answer
    x = 384,004.70

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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.