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Finding the Fourth Proportional to 350,319.08, 525,678.60 and 137,104.40

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Solution

The fourth proportional to 350,319.08, 525,678.60 and 137,104.40 is: 205,734.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    350,319.08 : 525,678.60 = 137,104.40 : x
  2. Step 2: Convert to fraction form
    350,319.08/525,678.60 = 137,104.40/x
  3. Step 3: Cross multiply
    350,319.08x = 525,678.60 × 137,104.40
  4. Step 4: Simplify right side
    350,319.08x = 72,072,849,045.84
  5. Step 5: Solve for x
    x = 72,072,849,045.84/350,319.08
  6. Step 6: Final answer
    x = 205,734.87

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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.