Home / 215,876.04-323,809.20-97,515.60

Finding the Fourth Proportional to 215,876.04, 323,809.20 and 97,515.60

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Solution

The fourth proportional to 215,876.04, 323,809.20 and 97,515.60 is: 146,271.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,876.04 : 323,809.20 = 97,515.60 : x
  2. Step 2: Convert to fraction form
    215,876.04/323,809.20 = 97,515.60/x
  3. Step 3: Cross multiply
    215,876.04x = 323,809.20 × 97,515.60
  4. Step 4: Simplify right side
    215,876.04x = 31,576,448,423.52
  5. Step 5: Solve for x
    x = 31,576,448,423.52/215,876.04
  6. Step 6: Final answer
    x = 146,271.20

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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.