Home / 286,511.07-429,359.13-211,037.70

Finding the Fourth Proportional to 286,511.07, 429,359.13 and 211,037.70

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Solution

The fourth proportional to 286,511.07, 429,359.13 and 211,037.70 is: 316,256.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,511.07 : 429,359.13 = 211,037.70 : x
  2. Step 2: Convert to fraction form
    286,511.07/429,359.13 = 211,037.70/x
  3. Step 3: Cross multiply
    286,511.07x = 429,359.13 × 211,037.70
  4. Step 4: Simplify right side
    286,511.07x = 90,610,963,269.20
  5. Step 5: Solve for x
    x = 90,610,963,269.20/286,511.07
  6. Step 6: Final answer
    x = 316,256.41

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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.