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Finding the Fourth Proportional to 342,364.40, 513,967.80 and 216,004.40

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Solution

The fourth proportional to 342,364.40, 513,967.80 and 216,004.40 is: 324,272.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,364.40 : 513,967.80 = 216,004.40 : x
  2. Step 2: Convert to fraction form
    342,364.40/513,967.80 = 216,004.40/x
  3. Step 3: Cross multiply
    342,364.40x = 513,967.80 × 216,004.40
  4. Step 4: Simplify right side
    342,364.40x = 111,019,306,258.32
  5. Step 5: Solve for x
    x = 111,019,306,258.32/342,364.40
  6. Step 6: Final answer
    x = 324,272.34

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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.