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Finding the Fourth Proportional to 517,875.04, 776,756.04 and 138,832.96

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Solution

The fourth proportional to 517,875.04, 776,756.04 and 138,832.96 is: 208,234.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    517,875.04 : 776,756.04 = 138,832.96 : x
  2. Step 2: Convert to fraction form
    517,875.04/776,756.04 = 138,832.96/x
  3. Step 3: Cross multiply
    517,875.04x = 776,756.04 × 138,832.96
  4. Step 4: Simplify right side
    517,875.04x = 107,839,340,231.08
  5. Step 5: Solve for x
    x = 107,839,340,231.08/517,875.04
  6. Step 6: Final answer
    x = 208,234.29

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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.