Home / 252,001.40-378,293.70-145,470.20

Finding the Fourth Proportional to 252,001.40, 378,293.70 and 145,470.20

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Solution

The fourth proportional to 252,001.40, 378,293.70 and 145,470.20 is: 218,373.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,001.40 : 378,293.70 = 145,470.20 : x
  2. Step 2: Convert to fraction form
    252,001.40/378,293.70 = 145,470.20/x
  3. Step 3: Cross multiply
    252,001.40x = 378,293.70 × 145,470.20
  4. Step 4: Simplify right side
    252,001.40x = 55,030,460,197.74
  5. Step 5: Solve for x
    x = 55,030,460,197.74/252,001.40
  6. Step 6: Final answer
    x = 218,373.63

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1.5x scale

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.