Home / 245,622.15-338,955.09-138,191.93

Finding the Fourth Proportional to 245,622.15, 338,955.09 and 138,191.93

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Solution

The fourth proportional to 245,622.15, 338,955.09 and 138,191.93 is: 190,702.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,622.15 : 338,955.09 = 138,191.93 : x
  2. Step 2: Convert to fraction form
    245,622.15/338,955.09 = 138,191.93/x
  3. Step 3: Cross multiply
    245,622.15x = 338,955.09 × 138,191.93
  4. Step 4: Simplify right side
    245,622.15x = 46,840,857,341.19
  5. Step 5: Solve for x
    x = 46,840,857,341.19/245,622.15
  6. Step 6: Final answer
    x = 190,702.90

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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.