Home / 245,816.46-339,225.81-138,386.76

Finding the Fourth Proportional to 245,816.46, 339,225.81 and 138,386.76

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Solution

The fourth proportional to 245,816.46, 339,225.81 and 138,386.76 is: 190,973.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    245,816.46 : 339,225.81 = 138,386.76 : x
  2. Step 2: Convert to fraction form
    245,816.46/339,225.81 = 138,386.76/x
  3. Step 3: Cross multiply
    245,816.46x = 339,225.81 × 138,386.76
  4. Step 4: Simplify right side
    245,816.46x = 46,944,360,754.28
  5. Step 5: Solve for x
    x = 46,944,360,754.28/245,816.46
  6. Step 6: Final answer
    x = 190,973.22

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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.