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Finding the Fourth Proportional to 252,685.69, 348,666.54 and 145,235.65

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Solution

The fourth proportional to 252,685.69, 348,666.54 and 145,235.65 is: 200,402.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,685.69 : 348,666.54 = 145,235.65 : x
  2. Step 2: Convert to fraction form
    252,685.69/348,666.54 = 145,235.65/x
  3. Step 3: Cross multiply
    252,685.69x = 348,666.54 × 145,235.65
  4. Step 4: Simplify right side
    252,685.69x = 50,638,811,570.15
  5. Step 5: Solve for x
    x = 50,638,811,570.15/252,685.69
  6. Step 6: Final answer
    x = 200,402.37

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.