Home / 245,225.36-338,430.60-137,800.40

Finding the Fourth Proportional to 245,225.36, 338,430.60 and 137,800.40

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Solution

The fourth proportional to 245,225.36, 338,430.60 and 137,800.40 is: 190,175.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,225.36 : 338,430.60 = 137,800.40 : x
  2. Step 2: Convert to fraction form
    245,225.36/338,430.60 = 137,800.40/x
  3. Step 3: Cross multiply
    245,225.36x = 338,430.60 × 137,800.40
  4. Step 4: Simplify right side
    245,225.36x = 46,635,872,052.24
  5. Step 5: Solve for x
    x = 46,635,872,052.24/245,225.36
  6. Step 6: Final answer
    x = 190,175.57

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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.