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Finding the Fourth Proportional to 363,188.04, 500,915.88 and 309,650.28

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Solution

The fourth proportional to 363,188.04, 500,915.88 and 309,650.28 is: 427,075.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    363,188.04 : 500,915.88 = 309,650.28 : x
  2. Step 2: Convert to fraction form
    363,188.04/500,915.88 = 309,650.28/x
  3. Step 3: Cross multiply
    363,188.04x = 500,915.88 × 309,650.28
  4. Step 4: Simplify right side
    363,188.04x = 155,108,742,498.45
  5. Step 5: Solve for x
    x = 155,108,742,498.45/363,188.04
  6. Step 6: Final answer
    x = 427,075.58

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.