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Finding the Fourth Proportional to 455,884.71, 629,122.83 and 249,157.28

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Solution

The fourth proportional to 455,884.71, 629,122.83 and 249,157.28 is: 343,838.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    455,884.71 : 629,122.83 = 249,157.28 : x
  2. Step 2: Convert to fraction form
    455,884.71/629,122.83 = 249,157.28/x
  3. Step 3: Cross multiply
    455,884.71x = 629,122.83 × 249,157.28
  4. Step 4: Simplify right side
    455,884.71x = 156,750,533,108.70
  5. Step 5: Solve for x
    x = 156,750,533,108.70/455,884.71
  6. Step 6: Final answer
    x = 343,838.10

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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.