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Finding the Fourth Proportional to 191,009.70, 286,514.55 and 146,722.95

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Solution

The fourth proportional to 191,009.70, 286,514.55 and 146,722.95 is: 220,084.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    191,009.70 : 286,514.55 = 146,722.95 : x
  2. Step 2: Convert to fraction form
    191,009.70/286,514.55 = 146,722.95/x
  3. Step 3: Cross multiply
    191,009.70x = 286,514.55 × 146,722.95
  4. Step 4: Simplify right side
    191,009.70x = 42,038,259,993.92
  5. Step 5: Solve for x
    x = 42,038,259,993.92/191,009.70
  6. Step 6: Final answer
    x = 220,084.43

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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.