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Finding the Fourth Proportional to 288,540.40, 432,810.60 and 274,762.30

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Solution

The fourth proportional to 288,540.40, 432,810.60 and 274,762.30 is: 412,143.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,540.40 : 432,810.60 = 274,762.30 : x
  2. Step 2: Convert to fraction form
    288,540.40/432,810.60 = 274,762.30/x
  3. Step 3: Cross multiply
    288,540.40x = 432,810.60 × 274,762.30
  4. Step 4: Simplify right side
    288,540.40x = 118,920,035,920.38
  5. Step 5: Solve for x
    x = 118,920,035,920.38/288,540.40
  6. Step 6: Final answer
    x = 412,143.45

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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.