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Finding the Fourth Proportional to 247,777.30, 341,903.67 and 145,780.33

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Solution

The fourth proportional to 247,777.30, 341,903.67 and 145,780.33 is: 201,159.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    247,777.30 : 341,903.67 = 145,780.33 : x
  2. Step 2: Convert to fraction form
    247,777.30/341,903.67 = 145,780.33/x
  3. Step 3: Cross multiply
    247,777.30x = 341,903.67 × 145,780.33
  4. Step 4: Simplify right side
    247,777.30x = 49,842,829,840.81
  5. Step 5: Solve for x
    x = 49,842,829,840.81/247,777.30
  6. Step 6: Final answer
    x = 201,159.79

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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.