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Finding the Fourth Proportional to 276,320.63, 412,907.76 and 207,483.39

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Solution

The fourth proportional to 276,320.63, 412,907.76 and 207,483.39 is: 310,043.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    276,320.63 : 412,907.76 = 207,483.39 : x
  2. Step 2: Convert to fraction form
    276,320.63/412,907.76 = 207,483.39/x
  3. Step 3: Cross multiply
    276,320.63x = 412,907.76 × 207,483.39
  4. Step 4: Simplify right side
    276,320.63x = 85,671,501,802.11
  5. Step 5: Solve for x
    x = 85,671,501,802.11/276,320.63
  6. Step 6: Final answer
    x = 310,043.81

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.