Home / 287,747.04-397,102.32-160,445.28

Finding the Fourth Proportional to 287,747.04, 397,102.32 and 160,445.28

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Solution

The fourth proportional to 287,747.04, 397,102.32 and 160,445.28 is: 221,420.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,747.04 : 397,102.32 = 160,445.28 : x
  2. Step 2: Convert to fraction form
    287,747.04/397,102.32 = 160,445.28/x
  3. Step 3: Cross multiply
    287,747.04x = 397,102.32 × 160,445.28
  4. Step 4: Simplify right side
    287,747.04x = 63,713,192,921.05
  5. Step 5: Solve for x
    x = 63,713,192,921.05/287,747.04
  6. Step 6: Final answer
    x = 221,420.85

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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.