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Finding the Fourth Proportional to 447,985.76, 671,900.88 and 152,497.76

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Solution

The fourth proportional to 447,985.76, 671,900.88 and 152,497.76 is: 228,720.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,985.76 : 671,900.88 = 152,497.76 : x
  2. Step 2: Convert to fraction form
    447,985.76/671,900.88 = 152,497.76/x
  3. Step 3: Cross multiply
    447,985.76x = 671,900.88 × 152,497.76
  4. Step 4: Simplify right side
    447,985.76x = 102,463,379,142.03
  5. Step 5: Solve for x
    x = 102,463,379,142.03/447,985.76
  6. Step 6: Final answer
    x = 228,720.17

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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.