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Finding the Fourth Proportional to 250,362.16, 345,498.32 and 135,643.07

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Solution

The fourth proportional to 250,362.16, 345,498.32 and 135,643.07 is: 187,186.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    250,362.16 : 345,498.32 = 135,643.07 : x
  2. Step 2: Convert to fraction form
    250,362.16/345,498.32 = 135,643.07/x
  3. Step 3: Cross multiply
    250,362.16x = 345,498.32 × 135,643.07
  4. Step 4: Simplify right side
    250,362.16x = 46,864,454,007.50
  5. Step 5: Solve for x
    x = 46,864,454,007.50/250,362.16
  6. Step 6: Final answer
    x = 187,186.65

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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.