Home / 282,628.43-390,022.72-155,301.29

Finding the Fourth Proportional to 282,628.43, 390,022.72 and 155,301.29

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Solution

The fourth proportional to 282,628.43, 390,022.72 and 155,301.29 is: 214,313.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,628.43 : 390,022.72 = 155,301.29 : x
  2. Step 2: Convert to fraction form
    282,628.43/390,022.72 = 155,301.29/x
  3. Step 3: Cross multiply
    282,628.43x = 390,022.72 × 155,301.29
  4. Step 4: Simplify right side
    282,628.43x = 60,571,031,545.31
  5. Step 5: Solve for x
    x = 60,571,031,545.31/282,628.43
  6. Step 6: Final answer
    x = 214,313.30

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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.