Home / 470,821.20-705,972.60-155,115.60

Finding the Fourth Proportional to 470,821.20, 705,972.60 and 155,115.60

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Solution

The fourth proportional to 470,821.20, 705,972.60 and 155,115.60 is: 232,588.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    470,821.20 : 705,972.60 = 155,115.60 : x
  2. Step 2: Convert to fraction form
    470,821.20/705,972.60 = 155,115.60/x
  3. Step 3: Cross multiply
    470,821.20x = 705,972.60 × 155,115.60
  4. Step 4: Simplify right side
    470,821.20x = 109,507,363,432.56
  5. Step 5: Solve for x
    x = 109,507,363,432.56/470,821.20
  6. Step 6: Final answer
    x = 232,588.00

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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.