Home / 257,623.74-355,541.40-142,913.70

Finding the Fourth Proportional to 257,623.74, 355,541.40 and 142,913.70

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Solution

The fourth proportional to 257,623.74, 355,541.40 and 142,913.70 is: 197,232.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,623.74 : 355,541.40 = 142,913.70 : x
  2. Step 2: Convert to fraction form
    257,623.74/355,541.40 = 142,913.70/x
  3. Step 3: Cross multiply
    257,623.74x = 355,541.40 × 142,913.70
  4. Step 4: Simplify right side
    257,623.74x = 50,811,736,977.18
  5. Step 5: Solve for x
    x = 50,811,736,977.18/257,623.74
  6. Step 6: Final answer
    x = 197,232.36

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These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.