Home / 251,462.40-347,011.18-138,285.15

Finding the Fourth Proportional to 251,462.40, 347,011.18 and 138,285.15

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Solution

The fourth proportional to 251,462.40, 347,011.18 and 138,285.15 is: 190,829.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,462.40 : 347,011.18 = 138,285.15 : x
  2. Step 2: Convert to fraction form
    251,462.40/347,011.18 = 138,285.15/x
  3. Step 3: Cross multiply
    251,462.40x = 347,011.18 × 138,285.15
  4. Step 4: Simplify right side
    251,462.40x = 47,986,493,077.98
  5. Step 5: Solve for x
    x = 47,986,493,077.98/251,462.40
  6. Step 6: Final answer
    x = 190,829.69

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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.