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Finding the Fourth Proportional to 388,510.03, 582,805.55 and 148,623.47

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Solution

The fourth proportional to 388,510.03, 582,805.55 and 148,623.47 is: 222,950.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,510.03 : 582,805.55 = 148,623.47 : x
  2. Step 2: Convert to fraction form
    388,510.03/582,805.55 = 148,623.47/x
  3. Step 3: Cross multiply
    388,510.03x = 582,805.55 × 148,623.47
  4. Step 4: Simplify right side
    388,510.03x = 86,618,583,176.26
  5. Step 5: Solve for x
    x = 86,618,583,176.26/388,510.03
  6. Step 6: Final answer
    x = 222,950.70

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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.