Home / 253,333.04-379,999.32-120,140.68

Finding the Fourth Proportional to 253,333.04, 379,999.32 and 120,140.68

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Solution

The fourth proportional to 253,333.04, 379,999.32 and 120,140.68 is: 180,210.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    253,333.04 : 379,999.32 = 120,140.68 : x
  2. Step 2: Convert to fraction form
    253,333.04/379,999.32 = 120,140.68/x
  3. Step 3: Cross multiply
    253,333.04x = 379,999.32 × 120,140.68
  4. Step 4: Simplify right side
    253,333.04x = 45,653,376,704.34
  5. Step 5: Solve for x
    x = 45,653,376,704.34/253,333.04
  6. Step 6: Final answer
    x = 180,210.91

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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.