Home / 240,935.80-361,403.70-128,961.40

Finding the Fourth Proportional to 240,935.80, 361,403.70 and 128,961.40

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Solution

The fourth proportional to 240,935.80, 361,403.70 and 128,961.40 is: 193,442.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    240,935.80 : 361,403.70 = 128,961.40 : x
  2. Step 2: Convert to fraction form
    240,935.80/361,403.70 = 128,961.40/x
  3. Step 3: Cross multiply
    240,935.80x = 361,403.70 × 128,961.40
  4. Step 4: Simplify right side
    240,935.80x = 46,607,127,117.18
  5. Step 5: Solve for x
    x = 46,607,127,117.18/240,935.80
  6. Step 6: Final answer
    x = 193,442.10

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.