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Finding the Fourth Proportional to 346,702.80, 520,054.20 and 323,374.80

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Solution

The fourth proportional to 346,702.80, 520,054.20 and 323,374.80 is: 485,062.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,702.80 : 520,054.20 = 323,374.80 : x
  2. Step 2: Convert to fraction form
    346,702.80/520,054.20 = 323,374.80/x
  3. Step 3: Cross multiply
    346,702.80x = 520,054.20 × 323,374.80
  4. Step 4: Simplify right side
    346,702.80x = 168,172,422,914.16
  5. Step 5: Solve for x
    x = 168,172,422,914.16/346,702.80
  6. Step 6: Final answer
    x = 485,062.20

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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.