Home / 212,209.02-318,313.71-54,437.49

Finding the Fourth Proportional to 212,209.02, 318,313.71 and 54,437.49

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Solution

The fourth proportional to 212,209.02, 318,313.71 and 54,437.49 is: 81,656.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    212,209.02 : 318,313.71 = 54,437.49 : x
  2. Step 2: Convert to fraction form
    212,209.02/318,313.71 = 54,437.49/x
  3. Step 3: Cross multiply
    212,209.02x = 318,313.71 × 54,437.49
  4. Step 4: Simplify right side
    212,209.02x = 17,328,199,404.99
  5. Step 5: Solve for x
    x = 17,328,199,404.99/212,209.02
  6. Step 6: Final answer
    x = 81,656.28

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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.