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Finding the Fourth Proportional to 249,125, 343,799.80 and 135,955.04

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Solution

The fourth proportional to 249,125, 343,799.80 and 135,955.04 is: 187,621.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    249,125 : 343,799.80 = 135,955.04 : x
  2. Step 2: Convert to fraction form
    249,125/343,799.80 = 135,955.04/x
  3. Step 3: Cross multiply
    249,125x = 343,799.80 × 135,955.04
  4. Step 4: Simplify right side
    249,125x = 46,741,315,560.99
  5. Step 5: Solve for x
    x = 46,741,315,560.99/249,125
  6. Step 6: Final answer
    x = 187,621.94

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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.