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Finding the Fourth Proportional to 207,119.40, 310,095.90 and 201,287.40

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Solution

The fourth proportional to 207,119.40, 310,095.90 and 201,287.40 is: 301,364.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,119.40 : 310,095.90 = 201,287.40 : x
  2. Step 2: Convert to fraction form
    207,119.40/310,095.90 = 201,287.40/x
  3. Step 3: Cross multiply
    207,119.40x = 310,095.90 × 201,287.40
  4. Step 4: Simplify right side
    207,119.40x = 62,418,397,461.66
  5. Step 5: Solve for x
    x = 62,418,397,461.66/207,119.40
  6. Step 6: Final answer
    x = 301,364.32

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.