Home / 287,407.55-430,843.27-97,738.31

Finding the Fourth Proportional to 287,407.55, 430,843.27 and 97,738.31

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Solution

The fourth proportional to 287,407.55, 430,843.27 and 97,738.31 is: 146,516.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    287,407.55 : 430,843.27 = 97,738.31 : x
  2. Step 2: Convert to fraction form
    287,407.55/430,843.27 = 97,738.31/x
  3. Step 3: Cross multiply
    287,407.55x = 430,843.27 × 97,738.31
  4. Step 4: Simplify right side
    287,407.55x = 42,109,891,677.20
  5. Step 5: Solve for x
    x = 42,109,891,677.20/287,407.55
  6. Step 6: Final answer
    x = 146,516.30

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.