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Finding the Fourth Proportional to 248,785.81, 342,976.58 and 210,390.98

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Solution

The fourth proportional to 248,785.81, 342,976.58 and 210,390.98 is: 290,045.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,785.81 : 342,976.58 = 210,390.98 : x
  2. Step 2: Convert to fraction form
    248,785.81/342,976.58 = 210,390.98/x
  3. Step 3: Cross multiply
    248,785.81x = 342,976.58 × 210,390.98
  4. Step 4: Simplify right side
    248,785.81x = 72,159,177,594.34
  5. Step 5: Solve for x
    x = 72,159,177,594.34/248,785.81
  6. Step 6: Final answer
    x = 290,045.39

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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.