Home / 287,870.63-397,261.46-160,543.49

Finding the Fourth Proportional to 287,870.63, 397,261.46 and 160,543.49

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Solution

The fourth proportional to 287,870.63, 397,261.46 and 160,543.49 is: 221,550.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,870.63 : 397,261.46 = 160,543.49 : x
  2. Step 2: Convert to fraction form
    287,870.63/397,261.46 = 160,543.49/x
  3. Step 3: Cross multiply
    287,870.63x = 397,261.46 × 160,543.49
  4. Step 4: Simplify right side
    287,870.63x = 63,777,739,645.95
  5. Step 5: Solve for x
    x = 63,777,739,645.95/287,870.63
  6. Step 6: Final answer
    x = 221,550.01

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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.