Home / 282,856.04-390,331.44-155,530.71

Finding the Fourth Proportional to 282,856.04, 390,331.44 and 155,530.71

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Solution

The fourth proportional to 282,856.04, 390,331.44 and 155,530.71 is: 214,626.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,856.04 : 390,331.44 = 155,530.71 : x
  2. Step 2: Convert to fraction form
    282,856.04/390,331.44 = 155,530.71/x
  3. Step 3: Cross multiply
    282,856.04x = 390,331.44 × 155,530.71
  4. Step 4: Simplify right side
    282,856.04x = 60,708,525,998.52
  5. Step 5: Solve for x
    x = 60,708,525,998.52/282,856.04
  6. Step 6: Final answer
    x = 214,626.94

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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.