Home / 282,697.40-390,190.02-161,908.58

Finding the Fourth Proportional to 282,697.40, 390,190.02 and 161,908.58

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Solution

The fourth proportional to 282,697.40, 390,190.02 and 161,908.58 is: 223,472.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,697.40 : 390,190.02 = 161,908.58 : x
  2. Step 2: Convert to fraction form
    282,697.40/390,190.02 = 161,908.58/x
  3. Step 3: Cross multiply
    282,697.40x = 390,190.02 × 161,908.58
  4. Step 4: Simplify right side
    282,697.40x = 63,175,112,068.37
  5. Step 5: Solve for x
    x = 63,175,112,068.37/282,697.40
  6. Step 6: Final answer
    x = 223,472.56

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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.