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Finding the Fourth Proportional to 350,543.60, 525,124.20 and 209,884.40

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Solution

The fourth proportional to 350,543.60, 525,124.20 and 209,884.40 is: 314,412.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,543.60 : 525,124.20 = 209,884.40 : x
  2. Step 2: Convert to fraction form
    350,543.60/525,124.20 = 209,884.40/x
  3. Step 3: Cross multiply
    350,543.60x = 525,124.20 × 209,884.40
  4. Step 4: Simplify right side
    350,543.60x = 110,215,377,642.48
  5. Step 5: Solve for x
    x = 110,215,377,642.48/350,543.60
  6. Step 6: Final answer
    x = 314,412.75

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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.