Home / 397,012.32-547,870.23-215,727.03

Finding the Fourth Proportional to 397,012.32, 547,870.23 and 215,727.03

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Solution

The fourth proportional to 397,012.32, 547,870.23 and 215,727.03 is: 297,699.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    397,012.32 : 547,870.23 = 215,727.03 : x
  2. Step 2: Convert to fraction form
    397,012.32/547,870.23 = 215,727.03/x
  3. Step 3: Cross multiply
    397,012.32x = 547,870.23 × 215,727.03
  4. Step 4: Simplify right side
    397,012.32x = 118,190,417,543.32
  5. Step 5: Solve for x
    x = 118,190,417,543.32/397,012.32
  6. Step 6: Final answer
    x = 297,699.62

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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.