Home / 309,264.45-426,784.71-173,299.47

Finding the Fourth Proportional to 309,264.45, 426,784.71 and 173,299.47

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Solution

The fourth proportional to 309,264.45, 426,784.71 and 173,299.47 is: 239,153.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,264.45 : 426,784.71 = 173,299.47 : x
  2. Step 2: Convert to fraction form
    309,264.45/426,784.71 = 173,299.47/x
  3. Step 3: Cross multiply
    309,264.45x = 426,784.71 × 173,299.47
  4. Step 4: Simplify right side
    309,264.45x = 73,961,564,047.10
  5. Step 5: Solve for x
    x = 73,961,564,047.10/309,264.45
  6. Step 6: Final answer
    x = 239,153.14

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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.