Home / 282,712.60-390,146.39-153,651.07

Finding the Fourth Proportional to 282,712.60, 390,146.39 and 153,651.07

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Solution

The fourth proportional to 282,712.60, 390,146.39 and 153,651.07 is: 212,040.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,712.60 : 390,146.39 = 153,651.07 : x
  2. Step 2: Convert to fraction form
    282,712.60/390,146.39 = 153,651.07/x
  3. Step 3: Cross multiply
    282,712.60x = 390,146.39 × 153,651.07
  4. Step 4: Simplify right side
    282,712.60x = 59,946,410,280.14
  5. Step 5: Solve for x
    x = 59,946,410,280.14/282,712.60
  6. Step 6: Final answer
    x = 212,040.11

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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.