Home / 279,346.07-385,506.27-158,492.45

Finding the Fourth Proportional to 279,346.07, 385,506.27 and 158,492.45

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Solution

The fourth proportional to 279,346.07, 385,506.27 and 158,492.45 is: 218,724.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    279,346.07 : 385,506.27 = 158,492.45 : x
  2. Step 2: Convert to fraction form
    279,346.07/385,506.27 = 158,492.45/x
  3. Step 3: Cross multiply
    279,346.07x = 385,506.27 × 158,492.45
  4. Step 4: Simplify right side
    279,346.07x = 61,099,831,295.13
  5. Step 5: Solve for x
    x = 61,099,831,295.13/279,346.07
  6. Step 6: Final answer
    x = 218,724.51

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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.