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Finding the Fourth Proportional to 348,309.63, 522,510.93 and 137,898.36

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Solution

The fourth proportional to 348,309.63, 522,510.93 and 137,898.36 is: 206,865.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    348,309.63 : 522,510.93 = 137,898.36 : x
  2. Step 2: Convert to fraction form
    348,309.63/522,510.93 = 137,898.36/x
  3. Step 3: Cross multiply
    348,309.63x = 522,510.93 × 137,898.36
  4. Step 4: Simplify right side
    348,309.63x = 72,053,400,329.07
  5. Step 5: Solve for x
    x = 72,053,400,329.07/348,309.63
  6. Step 6: Final answer
    x = 206,865.94

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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.