Home / 282,976.41-390,505.68-160,492.17

Finding the Fourth Proportional to 282,976.41, 390,505.68 and 160,492.17

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Solution

The fourth proportional to 282,976.41, 390,505.68 and 160,492.17 is: 221,478.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,976.41 : 390,505.68 = 160,492.17 : x
  2. Step 2: Convert to fraction form
    282,976.41/390,505.68 = 160,492.17/x
  3. Step 3: Cross multiply
    282,976.41x = 390,505.68 × 160,492.17
  4. Step 4: Simplify right side
    282,976.41x = 62,673,103,980.53
  5. Step 5: Solve for x
    x = 62,673,103,980.53/282,976.41
  6. Step 6: Final answer
    x = 221,478.19

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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.