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Finding the Fourth Proportional to 248,445.84, 342,854.18 and 135,266.16

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Solution

The fourth proportional to 248,445.84, 342,854.18 and 135,266.16 is: 186,666.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,445.84 : 342,854.18 = 135,266.16 : x
  2. Step 2: Convert to fraction form
    248,445.84/342,854.18 = 135,266.16/x
  3. Step 3: Cross multiply
    248,445.84x = 342,854.18 × 135,266.16
  4. Step 4: Simplify right side
    248,445.84x = 46,376,568,368.55
  5. Step 5: Solve for x
    x = 46,376,568,368.55/248,445.84
  6. Step 6: Final answer
    x = 186,666.71

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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.