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Finding the Fourth Proportional to 342,615.32, 513,920.12 and 267,798.40

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Solution

The fourth proportional to 342,615.32, 513,920.12 and 267,798.40 is: 401,695.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,615.32 : 513,920.12 = 267,798.40 : x
  2. Step 2: Convert to fraction form
    342,615.32/513,920.12 = 267,798.40/x
  3. Step 3: Cross multiply
    342,615.32x = 513,920.12 × 267,798.40
  4. Step 4: Simplify right side
    342,615.32x = 137,626,985,863.81
  5. Step 5: Solve for x
    x = 137,626,985,863.81/342,615.32
  6. Step 6: Final answer
    x = 401,695.36

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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.