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Finding the Fourth Proportional to 202,280.68, 303,417.78 and 77,621.68

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Solution

The fourth proportional to 202,280.68, 303,417.78 and 77,621.68 is: 116,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    202,280.68 : 303,417.78 = 77,621.68 : x
  2. Step 2: Convert to fraction form
    202,280.68/303,417.78 = 77,621.68/x
  3. Step 3: Cross multiply
    202,280.68x = 303,417.78 × 77,621.68
  4. Step 4: Simplify right side
    202,280.68x = 23,551,797,825.47
  5. Step 5: Solve for x
    x = 23,551,797,825.47/202,280.68
  6. Step 6: Final answer
    x = 116,431.28

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1.5x scale

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.