Home / 251,495.12-347,066.16-138,319.76

Finding the Fourth Proportional to 251,495.12, 347,066.16 and 138,319.76

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Solution

The fourth proportional to 251,495.12, 347,066.16 and 138,319.76 is: 190,882.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,495.12 : 347,066.16 = 138,319.76 : x
  2. Step 2: Convert to fraction form
    251,495.12/347,066.16 = 138,319.76/x
  3. Step 3: Cross multiply
    251,495.12x = 347,066.16 × 138,319.76
  4. Step 4: Simplify right side
    251,495.12x = 48,006,107,955.32
  5. Step 5: Solve for x
    x = 48,006,107,955.32/251,495.12
  6. Step 6: Final answer
    x = 190,882.86

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1.5x scale

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.