Home / 480,260.70-720,498-143,307.18

Finding the Fourth Proportional to 480,260.70, 720,498 and 143,307.18

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Solution

The fourth proportional to 480,260.70, 720,498 and 143,307.18 is: 214,992.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,260.70 : 720,498 = 143,307.18 : x
  2. Step 2: Convert to fraction form
    480,260.70/720,498 = 143,307.18/x
  3. Step 3: Cross multiply
    480,260.70x = 720,498 × 143,307.18
  4. Step 4: Simplify right side
    480,260.70x = 103,252,536,575.64
  5. Step 5: Solve for x
    x = 103,252,536,575.64/480,260.70
  6. Step 6: Final answer
    x = 214,992.68

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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.