Home / 287,914.10-397,320.35-158,860.61

Finding the Fourth Proportional to 287,914.10, 397,320.35 and 158,860.61

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Solution

The fourth proportional to 287,914.10, 397,320.35 and 158,860.61 is: 219,227.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,914.10 : 397,320.35 = 158,860.61 : x
  2. Step 2: Convert to fraction form
    287,914.10/397,320.35 = 158,860.61/x
  3. Step 3: Cross multiply
    287,914.10x = 397,320.35 × 158,860.61
  4. Step 4: Simplify right side
    287,914.10x = 63,118,550,385.51
  5. Step 5: Solve for x
    x = 63,118,550,385.51/287,914.10
  6. Step 6: Final answer
    x = 219,227.02

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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.