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Finding the Fourth Proportional to 429,880.52, 643,832.09 and 249,519.25

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Solution

The fourth proportional to 429,880.52, 643,832.09 and 249,519.25 is: 373,705.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    429,880.52 : 643,832.09 = 249,519.25 : x
  2. Step 2: Convert to fraction form
    429,880.52/643,832.09 = 249,519.25/x
  3. Step 3: Cross multiply
    429,880.52x = 643,832.09 × 249,519.25
  4. Step 4: Simplify right side
    429,880.52x = 160,648,500,846.53
  5. Step 5: Solve for x
    x = 160,648,500,846.53/429,880.52
  6. Step 6: Final answer
    x = 373,705.01

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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.