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Finding the Fourth Proportional to 248,243, 342,578.04 and 135,068.24

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Solution

The fourth proportional to 248,243, 342,578.04 and 135,068.24 is: 186,395.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,243 : 342,578.04 = 135,068.24 : x
  2. Step 2: Convert to fraction form
    248,243/342,578.04 = 135,068.24/x
  3. Step 3: Cross multiply
    248,243x = 342,578.04 × 135,068.24
  4. Step 4: Simplify right side
    248,243x = 46,271,412,925.45
  5. Step 5: Solve for x
    x = 46,271,412,925.45/248,243
  6. Step 6: Final answer
    x = 186,395.64

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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.