Home / 287,999.04-397,439.82-160,680

Finding the Fourth Proportional to 287,999.04, 397,439.82 and 160,680

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Solution

The fourth proportional to 287,999.04, 397,439.82 and 160,680 is: 221,739.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,999.04 : 397,439.82 = 160,680 : x
  2. Step 2: Convert to fraction form
    287,999.04/397,439.82 = 160,680/x
  3. Step 3: Cross multiply
    287,999.04x = 397,439.82 × 160,680
  4. Step 4: Simplify right side
    287,999.04x = 63,860,630,277.60
  5. Step 5: Solve for x
    x = 63,860,630,277.60/287,999.04
  6. Step 6: Final answer
    x = 221,739.04

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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.