Home / 287,741.04-397,094.04-160,439.28

Finding the Fourth Proportional to 287,741.04, 397,094.04 and 160,439.28

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Solution

The fourth proportional to 287,741.04, 397,094.04 and 160,439.28 is: 221,412.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,741.04 : 397,094.04 = 160,439.28 : x
  2. Step 2: Convert to fraction form
    287,741.04/397,094.04 = 160,439.28/x
  3. Step 3: Cross multiply
    287,741.04x = 397,094.04 × 160,439.28
  4. Step 4: Simplify right side
    287,741.04x = 63,709,481,869.89
  5. Step 5: Solve for x
    x = 63,709,481,869.89/287,741.04
  6. Step 6: Final answer
    x = 221,412.57

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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.