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Finding the Fourth Proportional to 340,810.90, 511,216.35 and 216,702.10

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Solution

The fourth proportional to 340,810.90, 511,216.35 and 216,702.10 is: 325,053.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    340,810.90 : 511,216.35 = 216,702.10 : x
  2. Step 2: Convert to fraction form
    340,810.90/511,216.35 = 216,702.10/x
  3. Step 3: Cross multiply
    340,810.90x = 511,216.35 × 216,702.10
  4. Step 4: Simplify right side
    340,810.90x = 110,781,656,599.34
  5. Step 5: Solve for x
    x = 110,781,656,599.34/340,810.90
  6. Step 6: Final answer
    x = 325,053.15

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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.