Home / 251,923.28-347,628.40-155,111.76

Finding the Fourth Proportional to 251,923.28, 347,628.40 and 155,111.76

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Solution

The fourth proportional to 251,923.28, 347,628.40 and 155,111.76 is: 214,038.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    251,923.28 : 347,628.40 = 155,111.76 : x
  2. Step 2: Convert to fraction form
    251,923.28/347,628.40 = 155,111.76/x
  3. Step 3: Cross multiply
    251,923.28x = 347,628.40 × 155,111.76
  4. Step 4: Simplify right side
    251,923.28x = 53,921,252,949.98
  5. Step 5: Solve for x
    x = 53,921,252,949.98/251,923.28
  6. Step 6: Final answer
    x = 214,038.39

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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.