Home / 282,749.88-390,192.54-155,424.12

Finding the Fourth Proportional to 282,749.88, 390,192.54 and 155,424.12

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Solution

The fourth proportional to 282,749.88, 390,192.54 and 155,424.12 is: 214,484.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,749.88 : 390,192.54 = 155,424.12 : x
  2. Step 2: Convert to fraction form
    282,749.88/390,192.54 = 155,424.12/x
  3. Step 3: Cross multiply
    282,749.88x = 390,192.54 × 155,424.12
  4. Step 4: Simplify right side
    282,749.88x = 60,645,332,160.06
  5. Step 5: Solve for x
    x = 60,645,332,160.06/282,749.88
  6. Step 6: Final answer
    x = 214,484.02

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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.