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Finding the Fourth Proportional to 250,147.62, 345,203.85 and 136,970.34

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Solution

The fourth proportional to 250,147.62, 345,203.85 and 136,970.34 is: 189,019.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,147.62 : 345,203.85 = 136,970.34 : x
  2. Step 2: Convert to fraction form
    250,147.62/345,203.85 = 136,970.34/x
  3. Step 3: Cross multiply
    250,147.62x = 345,203.85 × 136,970.34
  4. Step 4: Simplify right side
    250,147.62x = 47,282,688,703.81
  5. Step 5: Solve for x
    x = 47,282,688,703.81/250,147.62
  6. Step 6: Final answer
    x = 189,019.14

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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.