Home / 480,051.12-720,178.74-164,423.28

Finding the Fourth Proportional to 480,051.12, 720,178.74 and 164,423.28

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Solution

The fourth proportional to 480,051.12, 720,178.74 and 164,423.28 is: 246,669.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,051.12 : 720,178.74 = 164,423.28 : x
  2. Step 2: Convert to fraction form
    480,051.12/720,178.74 = 164,423.28/x
  3. Step 3: Cross multiply
    480,051.12x = 720,178.74 × 164,423.28
  4. Step 4: Simplify right side
    480,051.12x = 118,414,150,617.07
  5. Step 5: Solve for x
    x = 118,414,150,617.07/480,051.12
  6. Step 6: Final answer
    x = 246,669.88

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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.