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Finding the Fourth Proportional to 478,767.98, 718,257.08 and 141,835.01

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Solution

The fourth proportional to 478,767.98, 718,257.08 and 141,835.01 is: 212,783.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,767.98 : 718,257.08 = 141,835.01 : x
  2. Step 2: Convert to fraction form
    478,767.98/718,257.08 = 141,835.01/x
  3. Step 3: Cross multiply
    478,767.98x = 718,257.08 × 141,835.01
  4. Step 4: Simplify right side
    478,767.98x = 101,874,000,124.37
  5. Step 5: Solve for x
    x = 101,874,000,124.37/478,767.98
  6. Step 6: Final answer
    x = 212,783.66

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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.