Home / 212,384.97-318,567.05-79,254.84

Finding the Fourth Proportional to 212,384.97, 318,567.05 and 79,254.84

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Solution

The fourth proportional to 212,384.97, 318,567.05 and 79,254.84 is: 118,878.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,384.97 : 318,567.05 = 79,254.84 : x
  2. Step 2: Convert to fraction form
    212,384.97/318,567.05 = 79,254.84/x
  3. Step 3: Cross multiply
    212,384.97x = 318,567.05 × 79,254.84
  4. Step 4: Simplify right side
    212,384.97x = 25,247,980,577.02
  5. Step 5: Solve for x
    x = 25,247,980,577.02/212,384.97
  6. Step 6: Final answer
    x = 118,878.38

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1.5x scale

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.