Home / 379,985.16-524,350.60-210,215.64

Finding the Fourth Proportional to 379,985.16, 524,350.60 and 210,215.64

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Solution

The fourth proportional to 379,985.16, 524,350.60 and 210,215.64 is: 290,081.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    379,985.16 : 524,350.60 = 210,215.64 : x
  2. Step 2: Convert to fraction form
    379,985.16/524,350.60 = 210,215.64/x
  3. Step 3: Cross multiply
    379,985.16x = 524,350.60 × 210,215.64
  4. Step 4: Simplify right side
    379,985.16x = 110,226,696,963.38
  5. Step 5: Solve for x
    x = 110,226,696,963.38/379,985.16
  6. Step 6: Final answer
    x = 290,081.58

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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.