Home / 205,345.20-308,017.80-116,871.60

Finding the Fourth Proportional to 205,345.20, 308,017.80 and 116,871.60

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Solution

The fourth proportional to 205,345.20, 308,017.80 and 116,871.60 is: 175,307.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    205,345.20 : 308,017.80 = 116,871.60 : x
  2. Step 2: Convert to fraction form
    205,345.20/308,017.80 = 116,871.60/x
  3. Step 3: Cross multiply
    205,345.20x = 308,017.80 × 116,871.60
  4. Step 4: Simplify right side
    205,345.20x = 35,998,533,114.48
  5. Step 5: Solve for x
    x = 35,998,533,114.48/205,345.20
  6. Step 6: Final answer
    x = 175,307.40

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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.