Home / 259,043.10-388,564.65-153,807.90

Finding the Fourth Proportional to 259,043.10, 388,564.65 and 153,807.90

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Solution

The fourth proportional to 259,043.10, 388,564.65 and 153,807.90 is: 230,711.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    259,043.10 : 388,564.65 = 153,807.90 : x
  2. Step 2: Convert to fraction form
    259,043.10/388,564.65 = 153,807.90/x
  3. Step 3: Cross multiply
    259,043.10x = 388,564.65 × 153,807.90
  4. Step 4: Simplify right side
    259,043.10x = 59,764,312,830.74
  5. Step 5: Solve for x
    x = 59,764,312,830.74/259,043.10
  6. Step 6: Final answer
    x = 230,711.85

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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.