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Finding the Fourth Proportional to 267,386.40, 401,079.60 and 89,834.40

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Solution

The fourth proportional to 267,386.40, 401,079.60 and 89,834.40 is: 134,751.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    267,386.40 : 401,079.60 = 89,834.40 : x
  2. Step 2: Convert to fraction form
    267,386.40/401,079.60 = 89,834.40/x
  3. Step 3: Cross multiply
    267,386.40x = 401,079.60 × 89,834.40
  4. Step 4: Simplify right side
    267,386.40x = 36,030,745,218.24
  5. Step 5: Solve for x
    x = 36,030,745,218.24/267,386.40
  6. Step 6: Final answer
    x = 134,751.60

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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.