Home / 248,312.25-342,672.12-135,135

Finding the Fourth Proportional to 248,312.25, 342,672.12 and 135,135

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Solution

The fourth proportional to 248,312.25, 342,672.12 and 135,135 is: 186,486.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,312.25 : 342,672.12 = 135,135 : x
  2. Step 2: Convert to fraction form
    248,312.25/342,672.12 = 135,135/x
  3. Step 3: Cross multiply
    248,312.25x = 342,672.12 × 135,135
  4. Step 4: Simplify right side
    248,312.25x = 46,306,996,936.20
  5. Step 5: Solve for x
    x = 46,306,996,936.20/248,312.25
  6. Step 6: Final answer
    x = 186,486.96

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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.