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Finding the Fourth Proportional to 511,420.72, 767,169.96 and 156,461.44

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Solution

The fourth proportional to 511,420.72, 767,169.96 and 156,461.44 is: 234,704.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    511,420.72 : 767,169.96 = 156,461.44 : x
  2. Step 2: Convert to fraction form
    511,420.72/767,169.96 = 156,461.44/x
  3. Step 3: Cross multiply
    511,420.72x = 767,169.96 × 156,461.44
  4. Step 4: Simplify right side
    511,420.72x = 120,032,516,666.34
  5. Step 5: Solve for x
    x = 120,032,516,666.34/511,420.72
  6. Step 6: Final answer
    x = 234,704.05

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1.5x scale

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.