Home / 319,535.08-442,822.48-315,025

Finding the Fourth Proportional to 319,535.08, 442,822.48 and 315,025

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Solution

The fourth proportional to 319,535.08, 442,822.48 and 315,025 is: 436,572.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,535.08 : 442,822.48 = 315,025 : x
  2. Step 2: Convert to fraction form
    319,535.08/442,822.48 = 315,025/x
  3. Step 3: Cross multiply
    319,535.08x = 442,822.48 × 315,025
  4. Step 4: Simplify right side
    319,535.08x = 139,500,151,762
  5. Step 5: Solve for x
    x = 139,500,151,762/319,535.08
  6. Step 6: Final answer
    x = 436,572.26

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.