Home / 282,625.40-390,022.98-155,309.24

Finding the Fourth Proportional to 282,625.40, 390,022.98 and 155,309.24

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Solution

The fourth proportional to 282,625.40, 390,022.98 and 155,309.24 is: 214,326.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,625.40 : 390,022.98 = 155,309.24 : x
  2. Step 2: Convert to fraction form
    282,625.40/390,022.98 = 155,309.24/x
  3. Step 3: Cross multiply
    282,625.40x = 390,022.98 × 155,309.24
  4. Step 4: Simplify right side
    282,625.40x = 60,574,172,606.34
  5. Step 5: Solve for x
    x = 60,574,172,606.34/282,625.40
  6. Step 6: Final answer
    x = 214,326.71

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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.