Home / 210,003.20-287,485.87-208,502.36

Finding the Fourth Proportional to 210,003.20, 287,485.87 and 208,502.36

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Solution

The fourth proportional to 210,003.20, 287,485.87 and 208,502.36 is: 285,431.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    210,003.20 : 287,485.87 = 208,502.36 : x
  2. Step 2: Convert to fraction form
    210,003.20/287,485.87 = 208,502.36/x
  3. Step 3: Cross multiply
    210,003.20x = 287,485.87 × 208,502.36
  4. Step 4: Simplify right side
    210,003.20x = 59,941,482,361.65
  5. Step 5: Solve for x
    x = 59,941,482,361.65/210,003.20
  6. Step 6: Final answer
    x = 285,431.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.