Home / 282,732.48-390,166.36-155,405.34

Finding the Fourth Proportional to 282,732.48, 390,166.36 and 155,405.34

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Solution

The fourth proportional to 282,732.48, 390,166.36 and 155,405.34 is: 214,456.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,732.48 : 390,166.36 = 155,405.34 : x
  2. Step 2: Convert to fraction form
    282,732.48/390,166.36 = 155,405.34/x
  3. Step 3: Cross multiply
    282,732.48x = 390,166.36 × 155,405.34
  4. Step 4: Simplify right side
    282,732.48x = 60,633,935,832.36
  5. Step 5: Solve for x
    x = 60,633,935,832.36/282,732.48
  6. Step 6: Final answer
    x = 214,456.92

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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.