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Finding the Fourth Proportional to 288,554.54, 432,911.66 and 120,154.05

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Solution

The fourth proportional to 288,554.54, 432,911.66 and 120,154.05 is: 180,264.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,554.54 : 432,911.66 = 120,154.05 : x
  2. Step 2: Convert to fraction form
    288,554.54/432,911.66 = 120,154.05/x
  3. Step 3: Cross multiply
    288,554.54x = 432,911.66 × 120,154.05
  4. Step 4: Simplify right side
    288,554.54x = 52,016,088,640.45
  5. Step 5: Solve for x
    x = 52,016,088,640.45/288,554.54
  6. Step 6: Final answer
    x = 180,264.33

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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.