Home / 309,421.63-427,001.85-175,285.63

Finding the Fourth Proportional to 309,421.63, 427,001.85 and 175,285.63

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Solution

The fourth proportional to 309,421.63, 427,001.85 and 175,285.63 is: 241,894.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    309,421.63 : 427,001.85 = 175,285.63 : x
  2. Step 2: Convert to fraction form
    309,421.63/427,001.85 = 175,285.63/x
  3. Step 3: Cross multiply
    309,421.63x = 427,001.85 × 175,285.63
  4. Step 4: Simplify right side
    309,421.63x = 74,847,285,276.98
  5. Step 5: Solve for x
    x = 74,847,285,276.98/309,421.63
  6. Step 6: Final answer
    x = 241,894.16

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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.