Home / 286,973.53-430,444.91-87,278.34

Finding the Fourth Proportional to 286,973.53, 430,444.91 and 87,278.34

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Solution

The fourth proportional to 286,973.53, 430,444.91 and 87,278.34 is: 130,912.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    286,973.53 : 430,444.91 = 87,278.34 : x
  2. Step 2: Convert to fraction form
    286,973.53/430,444.91 = 87,278.34/x
  3. Step 3: Cross multiply
    286,973.53x = 430,444.91 × 87,278.34
  4. Step 4: Simplify right side
    286,973.53x = 37,568,518,842.31
  5. Step 5: Solve for x
    x = 37,568,518,842.31/286,973.53
  6. Step 6: Final answer
    x = 130,912.84

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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.