Home / 245,740.05-339,084.39-138,303.69

Finding the Fourth Proportional to 245,740.05, 339,084.39 and 138,303.69

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Solution

The fourth proportional to 245,740.05, 339,084.39 and 138,303.69 is: 190,838.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,740.05 : 339,084.39 = 138,303.69 : x
  2. Step 2: Convert to fraction form
    245,740.05/339,084.39 = 138,303.69/x
  3. Step 3: Cross multiply
    245,740.05x = 339,084.39 × 138,303.69
  4. Step 4: Simplify right side
    245,740.05x = 46,896,622,358.40
  5. Step 5: Solve for x
    x = 46,896,622,358.40/245,740.05
  6. Step 6: Final answer
    x = 190,838.34

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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.