Home / 245,132.03-338,245.35-137,681.48

Finding the Fourth Proportional to 245,132.03, 338,245.35 and 137,681.48

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Solution

The fourth proportional to 245,132.03, 338,245.35 and 137,681.48 is: 189,979.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,132.03 : 338,245.35 = 137,681.48 : x
  2. Step 2: Convert to fraction form
    245,132.03/338,245.35 = 137,681.48/x
  3. Step 3: Cross multiply
    245,132.03x = 338,245.35 × 137,681.48
  4. Step 4: Simplify right side
    245,132.03x = 46,570,118,699.89
  5. Step 5: Solve for x
    x = 46,570,118,699.89/245,132.03
  6. Step 6: Final answer
    x = 189,979.74

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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.