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Finding the Fourth Proportional to 480,196.35, 720,330.98 and 143,210.70

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Solution

The fourth proportional to 480,196.35, 720,330.98 and 143,210.70 is: 214,826.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    480,196.35 : 720,330.98 = 143,210.70 : x
  2. Step 2: Convert to fraction form
    480,196.35/720,330.98 = 143,210.70/x
  3. Step 3: Cross multiply
    480,196.35x = 720,330.98 × 143,210.70
  4. Step 4: Simplify right side
    480,196.35x = 103,159,103,161.43
  5. Step 5: Solve for x
    x = 103,159,103,161.43/480,196.35
  6. Step 6: Final answer
    x = 214,826.92

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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.