Home / 245,827.80-368,741.70-212,002.20

Finding the Fourth Proportional to 245,827.80, 368,741.70 and 212,002.20

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Solution

The fourth proportional to 245,827.80, 368,741.70 and 212,002.20 is: 318,003.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,827.80 : 368,741.70 = 212,002.20 : x
  2. Step 2: Convert to fraction form
    245,827.80/368,741.70 = 212,002.20/x
  3. Step 3: Cross multiply
    245,827.80x = 368,741.70 × 212,002.20
  4. Step 4: Simplify right side
    245,827.80x = 78,174,051,631.74
  5. Step 5: Solve for x
    x = 78,174,051,631.74/245,827.80
  6. Step 6: Final answer
    x = 318,003.30

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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.