Home / 388,095-582,101.55-103,814.23

Finding the Fourth Proportional to 388,095, 582,101.55 and 103,814.23

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Solution

The fourth proportional to 388,095, 582,101.55 and 103,814.23 is: 155,710.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,095 : 582,101.55 = 103,814.23 : x
  2. Step 2: Convert to fraction form
    388,095/582,101.55 = 103,814.23/x
  3. Step 3: Cross multiply
    388,095x = 582,101.55 × 103,814.23
  4. Step 4: Simplify right side
    388,095x = 60,430,424,195.06
  5. Step 5: Solve for x
    x = 60,430,424,195.06/388,095
  6. Step 6: Final answer
    x = 155,710.39

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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.