Home / 279,495.64-385,703.40-152,170.12

Finding the Fourth Proportional to 279,495.64, 385,703.40 and 152,170.12

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Solution

The fourth proportional to 279,495.64, 385,703.40 and 152,170.12 is: 209,994.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,495.64 : 385,703.40 = 152,170.12 : x
  2. Step 2: Convert to fraction form
    279,495.64/385,703.40 = 152,170.12/x
  3. Step 3: Cross multiply
    279,495.64x = 385,703.40 × 152,170.12
  4. Step 4: Simplify right side
    279,495.64x = 58,692,532,662.41
  5. Step 5: Solve for x
    x = 58,692,532,662.41/279,495.64
  6. Step 6: Final answer
    x = 209,994.45

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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.