Home / 272,621.10-408,056.85-213,134.70

Finding the Fourth Proportional to 272,621.10, 408,056.85 and 213,134.70

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Solution

The fourth proportional to 272,621.10, 408,056.85 and 213,134.70 is: 319,018.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,621.10 : 408,056.85 = 213,134.70 : x
  2. Step 2: Convert to fraction form
    272,621.10/408,056.85 = 213,134.70/x
  3. Step 3: Cross multiply
    272,621.10x = 408,056.85 × 213,134.70
  4. Step 4: Simplify right side
    272,621.10x = 86,971,074,307.70
  5. Step 5: Solve for x
    x = 86,971,074,307.70/272,621.10
  6. Step 6: Final answer
    x = 319,018.13

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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.