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Finding the Fourth Proportional to 418,888.62, 578,068.80 and 227,903.37

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Solution

The fourth proportional to 418,888.62, 578,068.80 and 227,903.37 is: 314,508.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    418,888.62 : 578,068.80 = 227,903.37 : x
  2. Step 2: Convert to fraction form
    418,888.62/578,068.80 = 227,903.37/x
  3. Step 3: Cross multiply
    418,888.62x = 578,068.80 × 227,903.37
  4. Step 4: Simplify right side
    418,888.62x = 131,743,827,611.86
  5. Step 5: Solve for x
    x = 131,743,827,611.86/418,888.62
  6. Step 6: Final answer
    x = 314,508.01

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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.