Home / 248,543.55-342,969.06-139,639.38

Finding the Fourth Proportional to 248,543.55, 342,969.06 and 139,639.38

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Solution

The fourth proportional to 248,543.55, 342,969.06 and 139,639.38 is: 192,690.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,543.55 : 342,969.06 = 139,639.38 : x
  2. Step 2: Convert to fraction form
    248,543.55/342,969.06 = 139,639.38/x
  3. Step 3: Cross multiply
    248,543.55x = 342,969.06 × 139,639.38
  4. Step 4: Simplify right side
    248,543.55x = 47,891,986,897.58
  5. Step 5: Solve for x
    x = 47,891,986,897.58/248,543.55
  6. Step 6: Final answer
    x = 192,690.52

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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.