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Finding the Fourth Proportional to 493,368.63, 740,348.18 and 212,885.88

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Solution

The fourth proportional to 493,368.63, 740,348.18 and 212,885.88 is: 319,456.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    493,368.63 : 740,348.18 = 212,885.88 : x
  2. Step 2: Convert to fraction form
    493,368.63/740,348.18 = 212,885.88/x
  3. Step 3: Cross multiply
    493,368.63x = 740,348.18 × 212,885.88
  4. Step 4: Simplify right side
    493,368.63x = 157,609,674,043.00
  5. Step 5: Solve for x
    x = 157,609,674,043.00/493,368.63
  6. Step 6: Final answer
    x = 319,456.21

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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.