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Finding the Fourth Proportional to 350,315.08, 525,672.59 and 137,100.40

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Solution

The fourth proportional to 350,315.08, 525,672.59 and 137,100.40 is: 205,728.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,315.08 : 525,672.59 = 137,100.40 : x
  2. Step 2: Convert to fraction form
    350,315.08/525,672.59 = 137,100.40/x
  3. Step 3: Cross multiply
    350,315.08x = 525,672.59 × 137,100.40
  4. Step 4: Simplify right side
    350,315.08x = 72,069,920,358.35
  5. Step 5: Solve for x
    x = 72,069,920,358.35/350,315.08
  6. Step 6: Final answer
    x = 205,728.86

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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.