Home / 312,219.84-430,864.66-168,979.85

Finding the Fourth Proportional to 312,219.84, 430,864.66 and 168,979.85

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Solution

The fourth proportional to 312,219.84, 430,864.66 and 168,979.85 is: 233,192.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    312,219.84 : 430,864.66 = 168,979.85 : x
  2. Step 2: Convert to fraction form
    312,219.84/430,864.66 = 168,979.85/x
  3. Step 3: Cross multiply
    312,219.84x = 430,864.66 × 168,979.85
  4. Step 4: Simplify right side
    312,219.84x = 72,807,445,617.10
  5. Step 5: Solve for x
    x = 72,807,445,617.10/312,219.84
  6. Step 6: Final answer
    x = 233,192.89

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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.