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Finding the Fourth Proportional to 447,652.40, 671,478.60 and 181,421.60

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Solution

The fourth proportional to 447,652.40, 671,478.60 and 181,421.60 is: 272,132.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    447,652.40 : 671,478.60 = 181,421.60 : x
  2. Step 2: Convert to fraction form
    447,652.40/671,478.60 = 181,421.60/x
  3. Step 3: Cross multiply
    447,652.40x = 671,478.60 × 181,421.60
  4. Step 4: Simplify right side
    447,652.40x = 121,820,721,977.76
  5. Step 5: Solve for x
    x = 121,820,721,977.76/447,652.40
  6. Step 6: Final answer
    x = 272,132.40

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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.