Home / 207,931.40-311,897.10-186,158.60

Finding the Fourth Proportional to 207,931.40, 311,897.10 and 186,158.60

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Solution

The fourth proportional to 207,931.40, 311,897.10 and 186,158.60 is: 279,237.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    207,931.40 : 311,897.10 = 186,158.60 : x
  2. Step 2: Convert to fraction form
    207,931.40/311,897.10 = 186,158.60/x
  3. Step 3: Cross multiply
    207,931.40x = 311,897.10 × 186,158.60
  4. Step 4: Simplify right side
    207,931.40x = 58,062,327,480.06
  5. Step 5: Solve for x
    x = 58,062,327,480.06/207,931.40
  6. Step 6: Final answer
    x = 279,237.90

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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.