Home / 282,832.16-390,309.84-155,515.95

Finding the Fourth Proportional to 282,832.16, 390,309.84 and 155,515.95

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Solution

The fourth proportional to 282,832.16, 390,309.84 and 155,515.95 is: 214,612.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,832.16 : 390,309.84 = 155,515.95 : x
  2. Step 2: Convert to fraction form
    282,832.16/390,309.84 = 155,515.95/x
  3. Step 3: Cross multiply
    282,832.16x = 390,309.84 × 155,515.95
  4. Step 4: Simplify right side
    282,832.16x = 60,699,405,561.95
  5. Step 5: Solve for x
    x = 60,699,405,561.95/282,832.16
  6. Step 6: Final answer
    x = 214,612.82

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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.