Home / 210,640.48-290,685.79-119,995.10

Finding the Fourth Proportional to 210,640.48, 290,685.79 and 119,995.10

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Solution

The fourth proportional to 210,640.48, 290,685.79 and 119,995.10 is: 165,594.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,640.48 : 290,685.79 = 119,995.10 : x
  2. Step 2: Convert to fraction form
    210,640.48/290,685.79 = 119,995.10/x
  3. Step 3: Cross multiply
    210,640.48x = 290,685.79 × 119,995.10
  4. Step 4: Simplify right side
    210,640.48x = 34,880,870,226.27
  5. Step 5: Solve for x
    x = 34,880,870,226.27/210,640.48
  6. Step 6: Final answer
    x = 165,594.34

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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.