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Finding the Fourth Proportional to 311,211.20, 466,816.80 and 249,003.20

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Solution

The fourth proportional to 311,211.20, 466,816.80 and 249,003.20 is: 373,504.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    311,211.20 : 466,816.80 = 249,003.20 : x
  2. Step 2: Convert to fraction form
    311,211.20/466,816.80 = 249,003.20/x
  3. Step 3: Cross multiply
    311,211.20x = 466,816.80 × 249,003.20
  4. Step 4: Simplify right side
    311,211.20x = 116,238,877,013.76
  5. Step 5: Solve for x
    x = 116,238,877,013.76/311,211.20
  6. Step 6: Final answer
    x = 373,504.80

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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.