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Finding the Fourth Proportional to 520,090.02, 780,231.51 and 165,008.10

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Solution

The fourth proportional to 520,090.02, 780,231.51 and 165,008.10 is: 247,542.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    520,090.02 : 780,231.51 = 165,008.10 : x
  2. Step 2: Convert to fraction form
    520,090.02/780,231.51 = 165,008.10/x
  3. Step 3: Cross multiply
    520,090.02x = 780,231.51 × 165,008.10
  4. Step 4: Simplify right side
    520,090.02x = 128,744,519,025.23
  5. Step 5: Solve for x
    x = 128,744,519,025.23/520,090.02
  6. Step 6: Final answer
    x = 247,542.76

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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.