Home / 272,208.83-408,312.33-69,804.71

Finding the Fourth Proportional to 272,208.83, 408,312.33 and 69,804.71

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Solution

The fourth proportional to 272,208.83, 408,312.33 and 69,804.71 is: 104,706.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,208.83 : 408,312.33 = 69,804.71 : x
  2. Step 2: Convert to fraction form
    272,208.83/408,312.33 = 69,804.71/x
  3. Step 3: Cross multiply
    272,208.83x = 408,312.33 × 69,804.71
  4. Step 4: Simplify right side
    272,208.83x = 28,502,124,455.78
  5. Step 5: Solve for x
    x = 28,502,124,455.78/272,208.83
  6. Step 6: Final answer
    x = 104,706.83

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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.