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Finding the Fourth Proportional to 262,444.70, 393,667.05 and 155,999.90

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Solution

The fourth proportional to 262,444.70, 393,667.05 and 155,999.90 is: 233,999.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,444.70 : 393,667.05 = 155,999.90 : x
  2. Step 2: Convert to fraction form
    262,444.70/393,667.05 = 155,999.90/x
  3. Step 3: Cross multiply
    262,444.70x = 393,667.05 × 155,999.90
  4. Step 4: Simplify right side
    262,444.70x = 61,412,020,433.30
  5. Step 5: Solve for x
    x = 61,412,020,433.30/262,444.70
  6. Step 6: Final answer
    x = 233,999.85

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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.