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Finding the Fourth Proportional to 288,349.34, 432,740.48 and 108,612.09

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Solution

The fourth proportional to 288,349.34, 432,740.48 and 108,612.09 is: 162,999.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    288,349.34 : 432,740.48 = 108,612.09 : x
  2. Step 2: Convert to fraction form
    288,349.34/432,740.48 = 108,612.09/x
  3. Step 3: Cross multiply
    288,349.34x = 432,740.48 × 108,612.09
  4. Step 4: Simplify right side
    288,349.34x = 47,000,847,417.34
  5. Step 5: Solve for x
    x = 47,000,847,417.34/288,349.34
  6. Step 6: Final answer
    x = 162,999.67

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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.