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Finding the Fourth Proportional to 343,851.90, 514,793.70 and 304,485.90

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Solution

The fourth proportional to 343,851.90, 514,793.70 and 304,485.90 is: 455,857.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,851.90 : 514,793.70 = 304,485.90 : x
  2. Step 2: Convert to fraction form
    343,851.90/514,793.70 = 304,485.90/x
  3. Step 3: Cross multiply
    343,851.90x = 514,793.70 × 304,485.90
  4. Step 4: Simplify right side
    343,851.90x = 156,747,423,058.83
  5. Step 5: Solve for x
    x = 156,747,423,058.83/343,851.90
  6. Step 6: Final answer
    x = 455,857.37

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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.