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Finding the Fourth Proportional to 279,374.82, 385,536.15 and 152,051.46

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Solution

The fourth proportional to 279,374.82, 385,536.15 and 152,051.46 is: 209,830.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,374.82 : 385,536.15 = 152,051.46 : x
  2. Step 2: Convert to fraction form
    279,374.82/385,536.15 = 152,051.46/x
  3. Step 3: Cross multiply
    279,374.82x = 385,536.15 × 152,051.46
  4. Step 4: Simplify right side
    279,374.82x = 58,621,334,490.28
  5. Step 5: Solve for x
    x = 58,621,334,490.28/279,374.82
  6. Step 6: Final answer
    x = 209,830.42

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.