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Finding the Fourth Proportional to 255,620.09, 380,938.38 and 247,924.28

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Solution

The fourth proportional to 255,620.09, 380,938.38 and 247,924.28 is: 369,469.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    255,620.09 : 380,938.38 = 247,924.28 : x
  2. Step 2: Convert to fraction form
    255,620.09/380,938.38 = 247,924.28/x
  3. Step 3: Cross multiply
    255,620.09x = 380,938.38 × 247,924.28
  4. Step 4: Simplify right side
    255,620.09x = 94,443,871,681.17
  5. Step 5: Solve for x
    x = 94,443,871,681.17/255,620.09
  6. Step 6: Final answer
    x = 369,469.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.