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Finding the Fourth Proportional to 478,750.58, 718,124.52 and 141,817.49

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Solution

The fourth proportional to 478,750.58, 718,124.52 and 141,817.49 is: 212,725.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,750.58 : 718,124.52 = 141,817.49 : x
  2. Step 2: Convert to fraction form
    478,750.58/718,124.52 = 141,817.49/x
  3. Step 3: Cross multiply
    478,750.58x = 718,124.52 × 141,817.49
  4. Step 4: Simplify right side
    478,750.58x = 101,842,616,933.86
  5. Step 5: Solve for x
    x = 101,842,616,933.86/478,750.58
  6. Step 6: Final answer
    x = 212,725.84

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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.