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Finding the Fourth Proportional to 351,312.75, 484,877.28 and 200,409.75

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Solution

The fourth proportional to 351,312.75, 484,877.28 and 200,409.75 is: 276,602.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    351,312.75 : 484,877.28 = 200,409.75 : x
  2. Step 2: Convert to fraction form
    351,312.75/484,877.28 = 200,409.75/x
  3. Step 3: Cross multiply
    351,312.75x = 484,877.28 × 200,409.75
  4. Step 4: Simplify right side
    351,312.75x = 97,174,134,465.48
  5. Step 5: Solve for x
    x = 97,174,134,465.48/351,312.75
  6. Step 6: Final answer
    x = 276,602.93

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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.