Home / 282,822.24-390,284.64-155,496.84

Finding the Fourth Proportional to 282,822.24, 390,284.64 and 155,496.84

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Solution

The fourth proportional to 282,822.24, 390,284.64 and 155,496.84 is: 214,580.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,822.24 : 390,284.64 = 155,496.84 : x
  2. Step 2: Convert to fraction form
    282,822.24/390,284.64 = 155,496.84/x
  3. Step 3: Cross multiply
    282,822.24x = 390,284.64 × 155,496.84
  4. Step 4: Simplify right side
    282,822.24x = 60,688,028,220.54
  5. Step 5: Solve for x
    x = 60,688,028,220.54/282,822.24
  6. Step 6: Final answer
    x = 214,580.11

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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.