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Finding the Fourth Proportional to 282,636.76, 390,060.48 and 161,816.08

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Solution

The fourth proportional to 282,636.76, 390,060.48 and 161,816.08 is: 223,318.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,636.76 : 390,060.48 = 161,816.08 : x
  2. Step 2: Convert to fraction form
    282,636.76/390,060.48 = 161,816.08/x
  3. Step 3: Cross multiply
    282,636.76x = 390,060.48 × 161,816.08
  4. Step 4: Simplify right side
    282,636.76x = 63,118,057,836.52
  5. Step 5: Solve for x
    x = 63,118,057,836.52/282,636.76
  6. Step 6: Final answer
    x = 223,318.64

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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.