Home / 319,753.12-441,384.96-210,840.16

Finding the Fourth Proportional to 319,753.12, 441,384.96 and 210,840.16

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Solution

The fourth proportional to 319,753.12, 441,384.96 and 210,840.16 is: 291,042.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    319,753.12 : 441,384.96 = 210,840.16 : x
  2. Step 2: Convert to fraction form
    319,753.12/441,384.96 = 210,840.16/x
  3. Step 3: Cross multiply
    319,753.12x = 441,384.96 × 210,840.16
  4. Step 4: Simplify right side
    319,753.12x = 93,061,675,587.99
  5. Step 5: Solve for x
    x = 93,061,675,587.99/319,753.12
  6. Step 6: Final answer
    x = 291,042.28

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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.