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Finding the Fourth Proportional to 190,700.80, 286,051.20 and 146,550.40

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Solution

The fourth proportional to 190,700.80, 286,051.20 and 146,550.40 is: 219,825.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    190,700.80 : 286,051.20 = 146,550.40 : x
  2. Step 2: Convert to fraction form
    190,700.80/286,051.20 = 146,550.40/x
  3. Step 3: Cross multiply
    190,700.80x = 286,051.20 × 146,550.40
  4. Step 4: Simplify right side
    190,700.80x = 41,920,917,780.48
  5. Step 5: Solve for x
    x = 41,920,917,780.48/190,700.80
  6. Step 6: Final answer
    x = 219,825.60

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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.