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Finding the Fourth Proportional to 215,506.27, 323,258.80 and 97,038.91

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Solution

The fourth proportional to 215,506.27, 323,258.80 and 97,038.91 is: 145,558.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,506.27 : 323,258.80 = 97,038.91 : x
  2. Step 2: Convert to fraction form
    215,506.27/323,258.80 = 97,038.91/x
  3. Step 3: Cross multiply
    215,506.27x = 323,258.80 × 97,038.91
  4. Step 4: Simplify right side
    215,506.27x = 31,368,681,599.91
  5. Step 5: Solve for x
    x = 31,368,681,599.91/215,506.27
  6. Step 6: Final answer
    x = 145,558.09

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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.