Home / 313,113.40-469,285.20-144,399.52

Finding the Fourth Proportional to 313,113.40, 469,285.20 and 144,399.52

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Solution

The fourth proportional to 313,113.40, 469,285.20 and 144,399.52 is: 216,421.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    313,113.40 : 469,285.20 = 144,399.52 : x
  2. Step 2: Convert to fraction form
    313,113.40/469,285.20 = 144,399.52/x
  3. Step 3: Cross multiply
    313,113.40x = 469,285.20 × 144,399.52
  4. Step 4: Simplify right side
    313,113.40x = 67,764,557,623.10
  5. Step 5: Solve for x
    x = 67,764,557,623.10/313,113.40
  6. Step 6: Final answer
    x = 216,421.77

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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.