Home / 319,895.16-479,841.35-130,313.24

Finding the Fourth Proportional to 319,895.16, 479,841.35 and 130,313.24

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Solution

The fourth proportional to 319,895.16, 479,841.35 and 130,313.24 is: 195,469.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,895.16 : 479,841.35 = 130,313.24 : x
  2. Step 2: Convert to fraction form
    319,895.16/479,841.35 = 130,313.24/x
  3. Step 3: Cross multiply
    319,895.16x = 479,841.35 × 130,313.24
  4. Step 4: Simplify right side
    319,895.16x = 62,529,679,753.11
  5. Step 5: Solve for x
    x = 62,529,679,753.11/319,895.16
  6. Step 6: Final answer
    x = 195,469.29

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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.