Home / 384,448.10-530,536.23-212,377.86

Finding the Fourth Proportional to 384,448.10, 530,536.23 and 212,377.86

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Solution

The fourth proportional to 384,448.10, 530,536.23 and 212,377.86 is: 293,080.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    384,448.10 : 530,536.23 = 212,377.86 : x
  2. Step 2: Convert to fraction form
    384,448.10/530,536.23 = 212,377.86/x
  3. Step 3: Cross multiply
    384,448.10x = 530,536.23 × 212,377.86
  4. Step 4: Simplify right side
    384,448.10x = 112,674,149,179.87
  5. Step 5: Solve for x
    x = 112,674,149,179.87/384,448.10
  6. Step 6: Final answer
    x = 293,080.26

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.