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Finding the Fourth Proportional to 342,362.40, 513,964.80 and 216,002.40

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Solution

The fourth proportional to 342,362.40, 513,964.80 and 216,002.40 is: 324,269.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    342,362.40 : 513,964.80 = 216,002.40 : x
  2. Step 2: Convert to fraction form
    342,362.40/513,964.80 = 216,002.40/x
  3. Step 3: Cross multiply
    342,362.40x = 513,964.80 × 216,002.40
  4. Step 4: Simplify right side
    342,362.40x = 111,017,630,315.52
  5. Step 5: Solve for x
    x = 111,017,630,315.52/342,362.40
  6. Step 6: Final answer
    x = 324,269.34

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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.