Home / 230,280.40-317,776.20-154,816.72

Finding the Fourth Proportional to 230,280.40, 317,776.20 and 154,816.72

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Solution

The fourth proportional to 230,280.40, 317,776.20 and 154,816.72 is: 213,639.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    230,280.40 : 317,776.20 = 154,816.72 : x
  2. Step 2: Convert to fraction form
    230,280.40/317,776.20 = 154,816.72/x
  3. Step 3: Cross multiply
    230,280.40x = 317,776.20 × 154,816.72
  4. Step 4: Simplify right side
    230,280.40x = 49,197,068,978.06
  5. Step 5: Solve for x
    x = 49,197,068,978.06/230,280.40
  6. Step 6: Final answer
    x = 213,639.85

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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.