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Finding the Fourth Proportional to 350,553.60, 525,830.40 and 280,569.60

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Solution

The fourth proportional to 350,553.60, 525,830.40 and 280,569.60 is: 420,854.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,553.60 : 525,830.40 = 280,569.60 : x
  2. Step 2: Convert to fraction form
    350,553.60/525,830.40 = 280,569.60/x
  3. Step 3: Cross multiply
    350,553.60x = 525,830.40 × 280,569.60
  4. Step 4: Simplify right side
    350,553.60x = 147,532,024,995.84
  5. Step 5: Solve for x
    x = 147,532,024,995.84/350,553.60
  6. Step 6: Final answer
    x = 420,854.40

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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.