Home / 282,649.02-390,048.78-161,782.66

Finding the Fourth Proportional to 282,649.02, 390,048.78 and 161,782.66

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Solution

The fourth proportional to 282,649.02, 390,048.78 and 161,782.66 is: 223,256.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,649.02 : 390,048.78 = 161,782.66 : x
  2. Step 2: Convert to fraction form
    282,649.02/390,048.78 = 161,782.66/x
  3. Step 3: Cross multiply
    282,649.02x = 390,048.78 × 161,782.66
  4. Step 4: Simplify right side
    282,649.02x = 63,103,129,158.15
  5. Step 5: Solve for x
    x = 63,103,129,158.15/282,649.02
  6. Step 6: Final answer
    x = 223,256.14

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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.