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Finding the Fourth Proportional to 248,423, 342,824.55 and 135,246.56

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Solution

The fourth proportional to 248,423, 342,824.55 and 135,246.56 is: 186,640.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,423 : 342,824.55 = 135,246.56 : x
  2. Step 2: Convert to fraction form
    248,423/342,824.55 = 135,246.56/x
  3. Step 3: Cross multiply
    248,423x = 342,824.55 × 135,246.56
  4. Step 4: Simplify right side
    248,423x = 46,365,841,071.05
  5. Step 5: Solve for x
    x = 46,365,841,071.05/248,423
  6. Step 6: Final answer
    x = 186,640.69

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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.