Home / 212,477.48-318,739.57-70,270.95

Finding the Fourth Proportional to 212,477.48, 318,739.57 and 70,270.95

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Solution

The fourth proportional to 212,477.48, 318,739.57 and 70,270.95 is: 105,414.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,477.48 : 318,739.57 = 70,270.95 : x
  2. Step 2: Convert to fraction form
    212,477.48/318,739.57 = 70,270.95/x
  3. Step 3: Cross multiply
    212,477.48x = 318,739.57 × 70,270.95
  4. Step 4: Simplify right side
    212,477.48x = 22,398,132,386.49
  5. Step 5: Solve for x
    x = 22,398,132,386.49/212,477.48
  6. Step 6: Final answer
    x = 105,414.15

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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.