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Finding the Fourth Proportional to 190,980.80, 286,276.80 and 112,054.40

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Solution

The fourth proportional to 190,980.80, 286,276.80 and 112,054.40 is: 167,967.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,980.80 : 286,276.80 = 112,054.40 : x
  2. Step 2: Convert to fraction form
    190,980.80/286,276.80 = 112,054.40/x
  3. Step 3: Cross multiply
    190,980.80x = 286,276.80 × 112,054.40
  4. Step 4: Simplify right side
    190,980.80x = 32,078,575,057.92
  5. Step 5: Solve for x
    x = 32,078,575,057.92/190,980.80
  6. Step 6: Final answer
    x = 167,967.54

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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.