Home / 287,858.10-397,244.55-158,793.66

Finding the Fourth Proportional to 287,858.10, 397,244.55 and 158,793.66

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Solution

The fourth proportional to 287,858.10, 397,244.55 and 158,793.66 is: 219,135.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,858.10 : 397,244.55 = 158,793.66 : x
  2. Step 2: Convert to fraction form
    287,858.10/397,244.55 = 158,793.66/x
  3. Step 3: Cross multiply
    287,858.10x = 397,244.55 × 158,793.66
  4. Step 4: Simplify right side
    287,858.10x = 63,079,916,009.55
  5. Step 5: Solve for x
    x = 63,079,916,009.55/287,858.10
  6. Step 6: Final answer
    x = 219,135.46

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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.