Home / 205,077.80-307,616.70-155,311.40

Finding the Fourth Proportional to 205,077.80, 307,616.70 and 155,311.40

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Solution

The fourth proportional to 205,077.80, 307,616.70 and 155,311.40 is: 232,967.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,077.80 : 307,616.70 = 155,311.40 : x
  2. Step 2: Convert to fraction form
    205,077.80/307,616.70 = 155,311.40/x
  3. Step 3: Cross multiply
    205,077.80x = 307,616.70 × 155,311.40
  4. Step 4: Simplify right side
    205,077.80x = 47,776,380,340.38
  5. Step 5: Solve for x
    x = 47,776,380,340.38/205,077.80
  6. Step 6: Final answer
    x = 232,967.10

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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.