Home / 262,492.20-393,479.10-129,263.40

Finding the Fourth Proportional to 262,492.20, 393,479.10 and 129,263.40

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Solution

The fourth proportional to 262,492.20, 393,479.10 and 129,263.40 is: 193,767.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    262,492.20 : 393,479.10 = 129,263.40 : x
  2. Step 2: Convert to fraction form
    262,492.20/393,479.10 = 129,263.40/x
  3. Step 3: Cross multiply
    262,492.20x = 393,479.10 × 129,263.40
  4. Step 4: Simplify right side
    262,492.20x = 50,862,446,294.94
  5. Step 5: Solve for x
    x = 50,862,446,294.94/262,492.20
  6. Step 6: Final answer
    x = 193,767.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.