Home / 287,121.17-430,207.83-166,840.47

Finding the Fourth Proportional to 287,121.17, 430,207.83 and 166,840.47

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Solution

The fourth proportional to 287,121.17, 430,207.83 and 166,840.47 is: 249,985.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,121.17 : 430,207.83 = 166,840.47 : x
  2. Step 2: Convert to fraction form
    287,121.17/430,207.83 = 166,840.47/x
  3. Step 3: Cross multiply
    287,121.17x = 430,207.83 × 166,840.47
  4. Step 4: Simplify right side
    287,121.17x = 71,776,076,554.88
  5. Step 5: Solve for x
    x = 71,776,076,554.88/287,121.17
  6. Step 6: Final answer
    x = 249,985.31

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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.