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Finding the Fourth Proportional to 174,643.60, 261,965.40 and 43,315.60

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Solution

The fourth proportional to 174,643.60, 261,965.40 and 43,315.60 is: 64,973.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    174,643.60 : 261,965.40 = 43,315.60 : x
  2. Step 2: Convert to fraction form
    174,643.60/261,965.40 = 43,315.60/x
  3. Step 3: Cross multiply
    174,643.60x = 261,965.40 × 43,315.60
  4. Step 4: Simplify right side
    174,643.60x = 11,347,188,480.24
  5. Step 5: Solve for x
    x = 11,347,188,480.24/174,643.60
  6. Step 6: Final answer
    x = 64,973.40

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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.