Home / 312,162.08-430,784.80-168,922.10

Finding the Fourth Proportional to 312,162.08, 430,784.80 and 168,922.10

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Solution

The fourth proportional to 312,162.08, 430,784.80 and 168,922.10 is: 233,113.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,162.08 : 430,784.80 = 168,922.10 : x
  2. Step 2: Convert to fraction form
    312,162.08/430,784.80 = 168,922.10/x
  3. Step 3: Cross multiply
    312,162.08x = 430,784.80 × 168,922.10
  4. Step 4: Simplify right side
    312,162.08x = 72,769,073,718.74
  5. Step 5: Solve for x
    x = 72,769,073,718.74/312,162.08
  6. Step 6: Final answer
    x = 233,113.12

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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.