Home / 245,211.57-338,390.87-136,315.17

Finding the Fourth Proportional to 245,211.57, 338,390.87 and 136,315.17

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Solution

The fourth proportional to 245,211.57, 338,390.87 and 136,315.17 is: 188,114.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,211.57 : 338,390.87 = 136,315.17 : x
  2. Step 2: Convert to fraction form
    245,211.57/338,390.87 = 136,315.17/x
  3. Step 3: Cross multiply
    245,211.57x = 338,390.87 × 136,315.17
  4. Step 4: Simplify right side
    245,211.57x = 46,127,808,288.92
  5. Step 5: Solve for x
    x = 46,127,808,288.92/245,211.57
  6. Step 6: Final answer
    x = 188,114.32

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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.