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Finding the Fourth Proportional to 368,399.84, 508,371 and 207,261.68

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Solution

The fourth proportional to 368,399.84, 508,371 and 207,261.68 is: 286,009.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    368,399.84 : 508,371 = 207,261.68 : x
  2. Step 2: Convert to fraction form
    368,399.84/508,371 = 207,261.68/x
  3. Step 3: Cross multiply
    368,399.84x = 508,371 × 207,261.68
  4. Step 4: Simplify right side
    368,399.84x = 105,365,827,523.28
  5. Step 5: Solve for x
    x = 105,365,827,523.28/368,399.84
  6. Step 6: Final answer
    x = 286,009.43

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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.