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Finding the Fourth Proportional to 515,185.58, 710,302.78 and 368,186.10

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Solution

The fourth proportional to 515,185.58, 710,302.78 and 368,186.10 is: 507,629.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    515,185.58 : 710,302.78 = 368,186.10 : x
  2. Step 2: Convert to fraction form
    515,185.58/710,302.78 = 368,186.10/x
  3. Step 3: Cross multiply
    515,185.58x = 710,302.78 × 368,186.10
  4. Step 4: Simplify right side
    515,185.58x = 261,523,608,546.43
  5. Step 5: Solve for x
    x = 261,523,608,546.43/515,185.58
  6. Step 6: Final answer
    x = 507,629.91

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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.