Home / 215,929.47-297,983.07-120,442.35

Finding the Fourth Proportional to 215,929.47, 297,983.07 and 120,442.35

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Solution

The fourth proportional to 215,929.47, 297,983.07 and 120,442.35 is: 166,210.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    215,929.47 : 297,983.07 = 120,442.35 : x
  2. Step 2: Convert to fraction form
    215,929.47/297,983.07 = 120,442.35/x
  3. Step 3: Cross multiply
    215,929.47x = 297,983.07 × 120,442.35
  4. Step 4: Simplify right side
    215,929.47x = 35,889,781,211.01
  5. Step 5: Solve for x
    x = 35,889,781,211.01/215,929.47
  6. Step 6: Final answer
    x = 166,210.67

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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.