Home / 251,988.02-347,747.64-138,810.86

Finding the Fourth Proportional to 251,988.02, 347,747.64 and 138,810.86

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Solution

The fourth proportional to 251,988.02, 347,747.64 and 138,810.86 is: 191,561.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,988.02 : 347,747.64 = 138,810.86 : x
  2. Step 2: Convert to fraction form
    251,988.02/347,747.64 = 138,810.86/x
  3. Step 3: Cross multiply
    251,988.02x = 347,747.64 × 138,810.86
  4. Step 4: Simplify right side
    251,988.02x = 48,271,148,971.37
  5. Step 5: Solve for x
    x = 48,271,148,971.37/251,988.02
  6. Step 6: Final answer
    x = 191,561.29

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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.