Home / 316,448.03-436,702.39-173,205

Finding the Fourth Proportional to 316,448.03, 436,702.39 and 173,205

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Solution

The fourth proportional to 316,448.03, 436,702.39 and 173,205 is: 239,025.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    316,448.03 : 436,702.39 = 173,205 : x
  2. Step 2: Convert to fraction form
    316,448.03/436,702.39 = 173,205/x
  3. Step 3: Cross multiply
    316,448.03x = 436,702.39 × 173,205
  4. Step 4: Simplify right side
    316,448.03x = 75,639,037,026.94
  5. Step 5: Solve for x
    x = 75,639,037,026.94/316,448.03
  6. Step 6: Final answer
    x = 239,025.15

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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.