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Finding the Fourth Proportional to 248,220.80, 342,534.88 and 135,041.12

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Solution

The fourth proportional to 248,220.80, 342,534.88 and 135,041.12 is: 186,351.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    248,220.80 : 342,534.88 = 135,041.12 : x
  2. Step 2: Convert to fraction form
    248,220.80/342,534.88 = 135,041.12/x
  3. Step 3: Cross multiply
    248,220.80x = 342,534.88 × 135,041.12
  4. Step 4: Simplify right side
    248,220.80x = 46,256,293,834.27
  5. Step 5: Solve for x
    x = 46,256,293,834.27/248,220.80
  6. Step 6: Final answer
    x = 186,351.40

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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.