Home / 245,799.02-339,209.10-138,372.98

Finding the Fourth Proportional to 245,799.02, 339,209.10 and 138,372.98

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Solution

The fourth proportional to 245,799.02, 339,209.10 and 138,372.98 is: 190,958.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,799.02 : 339,209.10 = 138,372.98 : x
  2. Step 2: Convert to fraction form
    245,799.02/339,209.10 = 138,372.98/x
  3. Step 3: Cross multiply
    245,799.02x = 339,209.10 × 138,372.98
  4. Step 4: Simplify right side
    245,799.02x = 46,937,372,314.07
  5. Step 5: Solve for x
    x = 46,937,372,314.07/245,799.02
  6. Step 6: Final answer
    x = 190,958.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.