Home / 286,689.23-430,031.41-73,456.73

Finding the Fourth Proportional to 286,689.23, 430,031.41 and 73,456.73

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Solution

The fourth proportional to 286,689.23, 430,031.41 and 73,456.73 is: 110,184.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,689.23 : 430,031.41 = 73,456.73 : x
  2. Step 2: Convert to fraction form
    286,689.23/430,031.41 = 73,456.73/x
  3. Step 3: Cross multiply
    286,689.23x = 430,031.41 × 73,456.73
  4. Step 4: Simplify right side
    286,689.23x = 31,588,701,175.89
  5. Step 5: Solve for x
    x = 31,588,701,175.89/286,689.23
  6. Step 6: Final answer
    x = 110,184.47

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1.5x scale

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.