Home / 282,684.02-390,087.54-155,359.61

Finding the Fourth Proportional to 282,684.02, 390,087.54 and 155,359.61

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Solution

The fourth proportional to 282,684.02, 390,087.54 and 155,359.61 is: 214,387.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,684.02 : 390,087.54 = 155,359.61 : x
  2. Step 2: Convert to fraction form
    282,684.02/390,087.54 = 155,359.61/x
  3. Step 3: Cross multiply
    282,684.02x = 390,087.54 × 155,359.61
  4. Step 4: Simplify right side
    282,684.02x = 60,603,846,129.82
  5. Step 5: Solve for x
    x = 60,603,846,129.82/282,684.02
  6. Step 6: Final answer
    x = 214,387.24

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1.5x scale

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.