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Finding the Fourth Proportional to 346,051.80, 518,093.55 and 266,663.70

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Solution

The fourth proportional to 346,051.80, 518,093.55 and 266,663.70 is: 399,237.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    346,051.80 : 518,093.55 = 266,663.70 : x
  2. Step 2: Convert to fraction form
    346,051.80/518,093.55 = 266,663.70/x
  3. Step 3: Cross multiply
    346,051.80x = 518,093.55 × 266,663.70
  4. Step 4: Simplify right side
    346,051.80x = 138,156,742,989.14
  5. Step 5: Solve for x
    x = 138,156,742,989.14/346,051.80
  6. Step 6: Final answer
    x = 399,237.17

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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.