Home / 315,485.24-435,363.72-179,516.12

Finding the Fourth Proportional to 315,485.24, 435,363.72 and 179,516.12

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Solution

The fourth proportional to 315,485.24, 435,363.72 and 179,516.12 is: 247,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    315,485.24 : 435,363.72 = 179,516.12 : x
  2. Step 2: Convert to fraction form
    315,485.24/435,363.72 = 179,516.12/x
  3. Step 3: Cross multiply
    315,485.24x = 435,363.72 × 179,516.12
  4. Step 4: Simplify right side
    315,485.24x = 78,154,805,803.17
  5. Step 5: Solve for x
    x = 78,154,805,803.17/315,485.24
  6. Step 6: Final answer
    x = 247,728.88

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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.