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Finding the Fourth Proportional to 250,038.42, 345,039.66 and 136,839.30

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Solution

The fourth proportional to 250,038.42, 345,039.66 and 136,839.30 is: 188,830.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,038.42 : 345,039.66 = 136,839.30 : x
  2. Step 2: Convert to fraction form
    250,038.42/345,039.66 = 136,839.30/x
  3. Step 3: Cross multiply
    250,038.42x = 345,039.66 × 136,839.30
  4. Step 4: Simplify right side
    250,038.42x = 47,214,985,546.64
  5. Step 5: Solve for x
    x = 47,214,985,546.64/250,038.42
  6. Step 6: Final answer
    x = 188,830.92

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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.