Home / 257,920.04-355,929.84-144,742.76

Finding the Fourth Proportional to 257,920.04, 355,929.84 and 144,742.76

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Solution

The fourth proportional to 257,920.04, 355,929.84 and 144,742.76 is: 199,745.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    257,920.04 : 355,929.84 = 144,742.76 : x
  2. Step 2: Convert to fraction form
    257,920.04/355,929.84 = 144,742.76/x
  3. Step 3: Cross multiply
    257,920.04x = 355,929.84 × 144,742.76
  4. Step 4: Simplify right side
    257,920.04x = 51,518,267,407.96
  5. Step 5: Solve for x
    x = 51,518,267,407.96/257,920.04
  6. Step 6: Final answer
    x = 199,745.11

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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.