Home / 215,688.40-323,568.24-97,357.12

Finding the Fourth Proportional to 215,688.40, 323,568.24 and 97,357.12

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Solution

The fourth proportional to 215,688.40, 323,568.24 and 97,357.12 is: 146,051.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,688.40 : 323,568.24 = 97,357.12 : x
  2. Step 2: Convert to fraction form
    215,688.40/323,568.24 = 97,357.12/x
  3. Step 3: Cross multiply
    215,688.40x = 323,568.24 × 97,357.12
  4. Step 4: Simplify right side
    215,688.40x = 31,501,671,969.87
  5. Step 5: Solve for x
    x = 31,501,671,969.87/215,688.40
  6. Step 6: Final answer
    x = 146,051.77

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.