Home / 291,677.20-437,688.60-212,592.40

Finding the Fourth Proportional to 291,677.20, 437,688.60 and 212,592.40

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Solution

The fourth proportional to 291,677.20, 437,688.60 and 212,592.40 is: 319,014.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    291,677.20 : 437,688.60 = 212,592.40 : x
  2. Step 2: Convert to fraction form
    291,677.20/437,688.60 = 212,592.40/x
  3. Step 3: Cross multiply
    291,677.20x = 437,688.60 × 212,592.40
  4. Step 4: Simplify right side
    291,677.20x = 93,049,269,926.64
  5. Step 5: Solve for x
    x = 93,049,269,926.64/291,677.20
  6. Step 6: Final answer
    x = 319,014.55

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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.