Home / 221,496.81-306,065.43-157,723.89

Finding the Fourth Proportional to 221,496.81, 306,065.43 and 157,723.89

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Solution

The fourth proportional to 221,496.81, 306,065.43 and 157,723.89 is: 217,943.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    221,496.81 : 306,065.43 = 157,723.89 : x
  2. Step 2: Convert to fraction form
    221,496.81/306,065.43 = 157,723.89/x
  3. Step 3: Cross multiply
    221,496.81x = 306,065.43 × 157,723.89
  4. Step 4: Simplify right side
    221,496.81x = 48,273,830,214.12
  5. Step 5: Solve for x
    x = 48,273,830,214.12/221,496.81
  6. Step 6: Final answer
    x = 217,943.68

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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.