Home / 287,753.04-397,110.60-160,451.28

Finding the Fourth Proportional to 287,753.04, 397,110.60 and 160,451.28

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Solution

The fourth proportional to 287,753.04, 397,110.60 and 160,451.28 is: 221,429.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,753.04 : 397,110.60 = 160,451.28 : x
  2. Step 2: Convert to fraction form
    287,753.04/397,110.60 = 160,451.28/x
  3. Step 3: Cross multiply
    287,753.04x = 397,110.60 × 160,451.28
  4. Step 4: Simplify right side
    287,753.04x = 63,716,904,071.57
  5. Step 5: Solve for x
    x = 63,716,904,071.57/287,753.04
  6. Step 6: Final answer
    x = 221,429.13

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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.