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Finding the Fourth Proportional to 250,219.65, 345,303.80 and 135,499.63

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Solution

The fourth proportional to 250,219.65, 345,303.80 and 135,499.63 is: 186,989.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,219.65 : 345,303.80 = 135,499.63 : x
  2. Step 2: Convert to fraction form
    250,219.65/345,303.80 = 135,499.63/x
  3. Step 3: Cross multiply
    250,219.65x = 345,303.80 × 135,499.63
  4. Step 4: Simplify right side
    250,219.65x = 46,788,537,137.59
  5. Step 5: Solve for x
    x = 46,788,537,137.59/250,219.65
  6. Step 6: Final answer
    x = 186,989.86

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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.