Home / 257,281.14-355,074.27-148,389.72

Finding the Fourth Proportional to 257,281.14, 355,074.27 and 148,389.72

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Solution

The fourth proportional to 257,281.14, 355,074.27 and 148,389.72 is: 204,792.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,281.14 : 355,074.27 = 148,389.72 : x
  2. Step 2: Convert to fraction form
    257,281.14/355,074.27 = 148,389.72/x
  3. Step 3: Cross multiply
    257,281.14x = 355,074.27 × 148,389.72
  4. Step 4: Simplify right side
    257,281.14x = 52,689,371,504.50
  5. Step 5: Solve for x
    x = 52,689,371,504.50/257,281.14
  6. Step 6: Final answer
    x = 204,792.98

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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.