Home / 251,987.02-347,746.26-138,809.86

Finding the Fourth Proportional to 251,987.02, 347,746.26 and 138,809.86

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Solution

The fourth proportional to 251,987.02, 347,746.26 and 138,809.86 is: 191,559.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,987.02 : 347,746.26 = 138,809.86 : x
  2. Step 2: Convert to fraction form
    251,987.02/347,746.26 = 138,809.86/x
  3. Step 3: Cross multiply
    251,987.02x = 347,746.26 × 138,809.86
  4. Step 4: Simplify right side
    251,987.02x = 48,270,609,666.12
  5. Step 5: Solve for x
    x = 48,270,609,666.12/251,987.02
  6. Step 6: Final answer
    x = 191,559.91

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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.