Home / 398,972.46-550,653.21-237,837.81

Finding the Fourth Proportional to 398,972.46, 550,653.21 and 237,837.81

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Solution

The fourth proportional to 398,972.46, 550,653.21 and 237,837.81 is: 328,258.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    398,972.46 : 550,653.21 = 237,837.81 : x
  2. Step 2: Convert to fraction form
    398,972.46/550,653.21 = 237,837.81/x
  3. Step 3: Cross multiply
    398,972.46x = 550,653.21 × 237,837.81
  4. Step 4: Simplify right side
    398,972.46x = 130,966,153,535.87
  5. Step 5: Solve for x
    x = 130,966,153,535.87/398,972.46
  6. Step 6: Final answer
    x = 328,258.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.