Home / 286,742.52-430,056.06-272,516.10

Finding the Fourth Proportional to 286,742.52, 430,056.06 and 272,516.10

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Solution

The fourth proportional to 286,742.52, 430,056.06 and 272,516.10 is: 408,719.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,742.52 : 430,056.06 = 272,516.10 : x
  2. Step 2: Convert to fraction form
    286,742.52/430,056.06 = 272,516.10/x
  3. Step 3: Cross multiply
    286,742.52x = 430,056.06 × 272,516.10
  4. Step 4: Simplify right side
    286,742.52x = 117,197,200,252.57
  5. Step 5: Solve for x
    x = 117,197,200,252.57/286,742.52
  6. Step 6: Final answer
    x = 408,719.29

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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.