Home / 343,011.05-514,317.10-129,795.43

Finding the Fourth Proportional to 343,011.05, 514,317.10 and 129,795.43

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Solution

The fourth proportional to 343,011.05, 514,317.10 and 129,795.43 is: 194,617.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    343,011.05 : 514,317.10 = 129,795.43 : x
  2. Step 2: Convert to fraction form
    343,011.05/514,317.10 = 129,795.43/x
  3. Step 3: Cross multiply
    343,011.05x = 514,317.10 × 129,795.43
  4. Step 4: Simplify right side
    343,011.05x = 66,756,009,150.85
  5. Step 5: Solve for x
    x = 66,756,009,150.85/343,011.05
  6. Step 6: Final answer
    x = 194,617.66

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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.