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Finding the Fourth Proportional to 280,004.04, 386,404.02 and 152,676.90

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Solution

The fourth proportional to 280,004.04, 386,404.02 and 152,676.90 is: 210,693.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    280,004.04 : 386,404.02 = 152,676.90 : x
  2. Step 2: Convert to fraction form
    280,004.04/386,404.02 = 152,676.90/x
  3. Step 3: Cross multiply
    280,004.04x = 386,404.02 × 152,676.90
  4. Step 4: Simplify right side
    280,004.04x = 58,994,967,921.14
  5. Step 5: Solve for x
    x = 58,994,967,921.14/280,004.04
  6. Step 6: Final answer
    x = 210,693.27

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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.