Home / 282,899.25-390,389.06-160,399.86

Finding the Fourth Proportional to 282,899.25, 390,389.06 and 160,399.86

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Solution

The fourth proportional to 282,899.25, 390,389.06 and 160,399.86 is: 221,345.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,899.25 : 390,389.06 = 160,399.86 : x
  2. Step 2: Convert to fraction form
    282,899.25/390,389.06 = 160,399.86/x
  3. Step 3: Cross multiply
    282,899.25x = 390,389.06 × 160,399.86
  4. Step 4: Simplify right side
    282,899.25x = 62,618,350,569.53
  5. Step 5: Solve for x
    x = 62,618,350,569.53/282,899.25
  6. Step 6: Final answer
    x = 221,345.06

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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.