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Finding the Fourth Proportional to 279,602.53, 385,855.88 and 152,278.02

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Solution

The fourth proportional to 279,602.53, 385,855.88 and 152,278.02 is: 210,146.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,602.53 : 385,855.88 = 152,278.02 : x
  2. Step 2: Convert to fraction form
    279,602.53/385,855.88 = 152,278.02/x
  3. Step 3: Cross multiply
    279,602.53x = 385,855.88 × 152,278.02
  4. Step 4: Simplify right side
    279,602.53x = 58,757,369,411.76
  5. Step 5: Solve for x
    x = 58,757,369,411.76/279,602.53
  6. Step 6: Final answer
    x = 210,146.06

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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.