Home / 210,237.20-315,442.20-77,181.20

Finding the Fourth Proportional to 210,237.20, 315,442.20 and 77,181.20

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Solution

The fourth proportional to 210,237.20, 315,442.20 and 77,181.20 is: 115,803.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,237.20 : 315,442.20 = 77,181.20 : x
  2. Step 2: Convert to fraction form
    210,237.20/315,442.20 = 77,181.20/x
  3. Step 3: Cross multiply
    210,237.20x = 315,442.20 × 77,181.20
  4. Step 4: Simplify right side
    210,237.20x = 24,346,207,526.64
  5. Step 5: Solve for x
    x = 24,346,207,526.64/210,237.20
  6. Step 6: Final answer
    x = 115,803.52

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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.