Home / 328,588.12-453,242.82-215,418.16

Finding the Fourth Proportional to 328,588.12, 453,242.82 and 215,418.16

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Solution

The fourth proportional to 328,588.12, 453,242.82 and 215,418.16 is: 297,140.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    328,588.12 : 453,242.82 = 215,418.16 : x
  2. Step 2: Convert to fraction form
    328,588.12/453,242.82 = 215,418.16/x
  3. Step 3: Cross multiply
    328,588.12x = 453,242.82 × 215,418.16
  4. Step 4: Simplify right side
    328,588.12x = 97,636,734,317.61
  5. Step 5: Solve for x
    x = 97,636,734,317.61/328,588.12
  6. Step 6: Final answer
    x = 297,140.18

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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.