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Finding the Fourth Proportional to 388,314.17, 582,510.99 and 148,629.45

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Solution

The fourth proportional to 388,314.17, 582,510.99 and 148,629.45 is: 222,959.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,314.17 : 582,510.99 = 148,629.45 : x
  2. Step 2: Convert to fraction form
    388,314.17/582,510.99 = 148,629.45/x
  3. Step 3: Cross multiply
    388,314.17x = 582,510.99 × 148,629.45
  4. Step 4: Simplify right side
    388,314.17x = 86,578,287,527.81
  5. Step 5: Solve for x
    x = 86,578,287,527.81/388,314.17
  6. Step 6: Final answer
    x = 222,959.38

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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.