Home / 272,869.44-409,284.18-85,934.40

Finding the Fourth Proportional to 272,869.44, 409,284.18 and 85,934.40

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Solution

The fourth proportional to 272,869.44, 409,284.18 and 85,934.40 is: 128,895.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    272,869.44 : 409,284.18 = 85,934.40 : x
  2. Step 2: Convert to fraction form
    272,869.44/409,284.18 = 85,934.40/x
  3. Step 3: Cross multiply
    272,869.44x = 409,284.18 × 85,934.40
  4. Step 4: Simplify right side
    272,869.44x = 35,171,590,437.79
  5. Step 5: Solve for x
    x = 35,171,590,437.79/272,869.44
  6. Step 6: Final answer
    x = 128,895.31

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.