Home / 282,625.32-390,018.57-155,298.18

Finding the Fourth Proportional to 282,625.32, 390,018.57 and 155,298.18

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Solution

The fourth proportional to 282,625.32, 390,018.57 and 155,298.18 is: 214,309.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,625.32 : 390,018.57 = 155,298.18 : x
  2. Step 2: Convert to fraction form
    282,625.32/390,018.57 = 155,298.18/x
  3. Step 3: Cross multiply
    282,625.32x = 390,018.57 × 155,298.18
  4. Step 4: Simplify right side
    282,625.32x = 60,569,174,087.20
  5. Step 5: Solve for x
    x = 60,569,174,087.20/282,625.32
  6. Step 6: Final answer
    x = 214,309.09

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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.