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Finding the Fourth Proportional to 246,722.50, 370,009.25 and 128,329.25

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Solution

The fourth proportional to 246,722.50, 370,009.25 and 128,329.25 is: 192,455.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    246,722.50 : 370,009.25 = 128,329.25 : x
  2. Step 2: Convert to fraction form
    246,722.50/370,009.25 = 128,329.25/x
  3. Step 3: Cross multiply
    246,722.50x = 370,009.25 × 128,329.25
  4. Step 4: Simplify right side
    246,722.50x = 47,483,010,791.41
  5. Step 5: Solve for x
    x = 47,483,010,791.41/246,722.50
  6. Step 6: Final answer
    x = 192,455.13

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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.