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Finding the Fourth Proportional to 301,893.60, 452,840.40 and 213,320.10

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Solution

The fourth proportional to 301,893.60, 452,840.40 and 213,320.10 is: 319,980.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    301,893.60 : 452,840.40 = 213,320.10 : x
  2. Step 2: Convert to fraction form
    301,893.60/452,840.40 = 213,320.10/x
  3. Step 3: Cross multiply
    301,893.60x = 452,840.40 × 213,320.10
  4. Step 4: Simplify right side
    301,893.60x = 96,599,959,412.04
  5. Step 5: Solve for x
    x = 96,599,959,412.04/301,893.60
  6. Step 6: Final answer
    x = 319,980.15

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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.