Home / 291,848.64-436,438.89-212,154.36

Finding the Fourth Proportional to 291,848.64, 436,438.89 and 212,154.36

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Solution

The fourth proportional to 291,848.64, 436,438.89 and 212,154.36 is: 317,261.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,848.64 : 436,438.89 = 212,154.36 : x
  2. Step 2: Convert to fraction form
    291,848.64/436,438.89 = 212,154.36/x
  3. Step 3: Cross multiply
    291,848.64x = 436,438.89 × 212,154.36
  4. Step 4: Simplify right side
    291,848.64x = 92,592,413,387.06
  5. Step 5: Solve for x
    x = 92,592,413,387.06/291,848.64
  6. Step 6: Final answer
    x = 317,261.76

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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.