Home / 257,210.40-355,123.58-160,561.41

Finding the Fourth Proportional to 257,210.40, 355,123.58 and 160,561.41

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Solution

The fourth proportional to 257,210.40, 355,123.58 and 160,561.41 is: 221,682.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,210.40 : 355,123.58 = 160,561.41 : x
  2. Step 2: Convert to fraction form
    257,210.40/355,123.58 = 160,561.41/x
  3. Step 3: Cross multiply
    257,210.40x = 355,123.58 × 160,561.41
  4. Step 4: Simplify right side
    257,210.40x = 57,019,140,594.53
  5. Step 5: Solve for x
    x = 57,019,140,594.53/257,210.40
  6. Step 6: Final answer
    x = 221,682.87

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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.