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Finding the Fourth Proportional to 248,339.79, 342,698.76 and 140,907.51

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Solution

The fourth proportional to 248,339.79, 342,698.76 and 140,907.51 is: 194,446.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,339.79 : 342,698.76 = 140,907.51 : x
  2. Step 2: Convert to fraction form
    248,339.79/342,698.76 = 140,907.51/x
  3. Step 3: Cross multiply
    248,339.79x = 342,698.76 × 140,907.51
  4. Step 4: Simplify right side
    248,339.79x = 48,288,828,951.69
  5. Step 5: Solve for x
    x = 48,288,828,951.69/248,339.79
  6. Step 6: Final answer
    x = 194,446.60

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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.