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Finding the Fourth Proportional to 320,274.51, 480,583.08 and 207,928.32

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Solution

The fourth proportional to 320,274.51, 480,583.08 and 207,928.32 is: 312,003.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    320,274.51 : 480,583.08 = 207,928.32 : x
  2. Step 2: Convert to fraction form
    320,274.51/480,583.08 = 207,928.32/x
  3. Step 3: Cross multiply
    320,274.51x = 480,583.08 × 207,928.32
  4. Step 4: Simplify right side
    320,274.51x = 99,926,832,444.83
  5. Step 5: Solve for x
    x = 99,926,832,444.83/320,274.51
  6. Step 6: Final answer
    x = 312,003.70

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.