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Finding the Fourth Proportional to 210,483.51, 315,622.94 and 70,194.75

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Solution

The fourth proportional to 210,483.51, 315,622.94 and 70,194.75 is: 105,258.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,483.51 : 315,622.94 = 70,194.75 : x
  2. Step 2: Convert to fraction form
    210,483.51/315,622.94 = 70,194.75/x
  3. Step 3: Cross multiply
    210,483.51x = 315,622.94 × 70,194.75
  4. Step 4: Simplify right side
    210,483.51x = 22,155,073,016.59
  5. Step 5: Solve for x
    x = 22,155,073,016.59/210,483.51
  6. Step 6: Final answer
    x = 105,258.00

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1.5x scale

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.