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Finding the Fourth Proportional to 350,523.20, 525,784.80 and 216,970.40

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Solution

The fourth proportional to 350,523.20, 525,784.80 and 216,970.40 is: 325,455.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,523.20 : 525,784.80 = 216,970.40 : x
  2. Step 2: Convert to fraction form
    350,523.20/525,784.80 = 216,970.40/x
  3. Step 3: Cross multiply
    350,523.20x = 525,784.80 × 216,970.40
  4. Step 4: Simplify right side
    350,523.20x = 114,079,738,369.92
  5. Step 5: Solve for x
    x = 114,079,738,369.92/350,523.20
  6. Step 6: Final answer
    x = 325,455.60

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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.