Home / 252,001.40-378,002.10-208,261.40

Finding the Fourth Proportional to 252,001.40, 378,002.10 and 208,261.40

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Solution

The fourth proportional to 252,001.40, 378,002.10 and 208,261.40 is: 312,392.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    252,001.40 : 378,002.10 = 208,261.40 : x
  2. Step 2: Convert to fraction form
    252,001.40/378,002.10 = 208,261.40/x
  3. Step 3: Cross multiply
    252,001.40x = 378,002.10 × 208,261.40
  4. Step 4: Simplify right side
    252,001.40x = 78,723,246,548.94
  5. Step 5: Solve for x
    x = 78,723,246,548.94/252,001.40
  6. Step 6: Final answer
    x = 312,392.10

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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.