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Finding the Fourth Proportional to 248,281, 342,624.90 and 135,101.80

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Solution

The fourth proportional to 248,281, 342,624.90 and 135,101.80 is: 186,438.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,281 : 342,624.90 = 135,101.80 : x
  2. Step 2: Convert to fraction form
    248,281/342,624.90 = 135,101.80/x
  3. Step 3: Cross multiply
    248,281x = 342,624.90 × 135,101.80
  4. Step 4: Simplify right side
    248,281x = 46,289,240,714.82
  5. Step 5: Solve for x
    x = 46,289,240,714.82/248,281
  6. Step 6: Final answer
    x = 186,438.92

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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.