Home / 282,631.40-390,053.06-161,810.60

Finding the Fourth Proportional to 282,631.40, 390,053.06 and 161,810.60

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Solution

The fourth proportional to 282,631.40, 390,053.06 and 161,810.60 is: 223,311.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,631.40 : 390,053.06 = 161,810.60 : x
  2. Step 2: Convert to fraction form
    282,631.40/390,053.06 = 161,810.60/x
  3. Step 3: Cross multiply
    282,631.40x = 390,053.06 × 161,810.60
  4. Step 4: Simplify right side
    282,631.40x = 63,114,719,670.44
  5. Step 5: Solve for x
    x = 63,114,719,670.44/282,631.40
  6. Step 6: Final answer
    x = 223,311.07

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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.