Home / 210,390.80-290,341.62-114,900.31

Finding the Fourth Proportional to 210,390.80, 290,341.62 and 114,900.31

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Solution

The fourth proportional to 210,390.80, 290,341.62 and 114,900.31 is: 158,563.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,390.80 : 290,341.62 = 114,900.31 : x
  2. Step 2: Convert to fraction form
    210,390.80/290,341.62 = 114,900.31/x
  3. Step 3: Cross multiply
    210,390.80x = 290,341.62 × 114,900.31
  4. Step 4: Simplify right side
    210,390.80x = 33,360,342,143.90
  5. Step 5: Solve for x
    x = 33,360,342,143.90/210,390.80
  6. Step 6: Final answer
    x = 158,563.69

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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.