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Finding the Fourth Proportional to 201,447.81, 278,004.76 and 110,807.60

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Solution

The fourth proportional to 201,447.81, 278,004.76 and 110,807.60 is: 152,918.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    201,447.81 : 278,004.76 = 110,807.60 : x
  2. Step 2: Convert to fraction form
    201,447.81/278,004.76 = 110,807.60/x
  3. Step 3: Cross multiply
    201,447.81x = 278,004.76 × 110,807.60
  4. Step 4: Simplify right side
    201,447.81x = 30,805,038,577.13
  5. Step 5: Solve for x
    x = 30,805,038,577.13/201,447.81
  6. Step 6: Final answer
    x = 152,918.21

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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.