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Finding the Fourth Proportional to 250,038.60, 345,050.46 and 136,860

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Solution

The fourth proportional to 250,038.60, 345,050.46 and 136,860 is: 188,865.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,038.60 : 345,050.46 = 136,860 : x
  2. Step 2: Convert to fraction form
    250,038.60/345,050.46 = 136,860/x
  3. Step 3: Cross multiply
    250,038.60x = 345,050.46 × 136,860
  4. Step 4: Simplify right side
    250,038.60x = 47,223,605,955.60
  5. Step 5: Solve for x
    x = 47,223,605,955.60/250,038.60
  6. Step 6: Final answer
    x = 188,865.26

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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.