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Finding the Fourth Proportional to 480,197.35, 720,332.48 and 143,211.70

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Solution

The fourth proportional to 480,197.35, 720,332.48 and 143,211.70 is: 214,828.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,197.35 : 720,332.48 = 143,211.70 : x
  2. Step 2: Convert to fraction form
    480,197.35/720,332.48 = 143,211.70/x
  3. Step 3: Cross multiply
    480,197.35x = 720,332.48 × 143,211.70
  4. Step 4: Simplify right side
    480,197.35x = 103,160,039,026.02
  5. Step 5: Solve for x
    x = 103,160,039,026.02/480,197.35
  6. Step 6: Final answer
    x = 214,828.42

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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.