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Finding the Fourth Proportional to 345,980.16, 519,056.64 and 96,660

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Solution

The fourth proportional to 345,980.16, 519,056.64 and 96,660 is: 145,014.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    345,980.16 : 519,056.64 = 96,660 : x
  2. Step 2: Convert to fraction form
    345,980.16/519,056.64 = 96,660/x
  3. Step 3: Cross multiply
    345,980.16x = 519,056.64 × 96,660
  4. Step 4: Simplify right side
    345,980.16x = 50,172,014,822.40
  5. Step 5: Solve for x
    x = 50,172,014,822.40/345,980.16
  6. Step 6: Final answer
    x = 145,014.14

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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.