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Finding the Fourth Proportional to 279,335.83, 385,492.19 and 158,482.21

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Solution

The fourth proportional to 279,335.83, 385,492.19 and 158,482.21 is: 218,710.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,335.83 : 385,492.19 = 158,482.21 : x
  2. Step 2: Convert to fraction form
    279,335.83/385,492.19 = 158,482.21/x
  3. Step 3: Cross multiply
    279,335.83x = 385,492.19 × 158,482.21
  4. Step 4: Simplify right side
    279,335.83x = 61,093,654,208.94
  5. Step 5: Solve for x
    x = 61,093,654,208.94/279,335.83
  6. Step 6: Final answer
    x = 218,710.41

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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.