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Finding the Fourth Proportional to 279,377.94, 385,541.56 and 152,054.45

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Solution

The fourth proportional to 279,377.94, 385,541.56 and 152,054.45 is: 209,835.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,377.94 : 385,541.56 = 152,054.45 : x
  2. Step 2: Convert to fraction form
    279,377.94/385,541.56 = 152,054.45/x
  3. Step 3: Cross multiply
    279,377.94x = 385,541.56 × 152,054.45
  4. Step 4: Simplify right side
    279,377.94x = 58,623,307,169.96
  5. Step 5: Solve for x
    x = 58,623,307,169.96/279,377.94
  6. Step 6: Final answer
    x = 209,835.13

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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.