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Finding the Fourth Proportional to 239,802.65, 359,638.35 and 90,031.42

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Solution

The fourth proportional to 239,802.65, 359,638.35 and 90,031.42 is: 135,022.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    239,802.65 : 359,638.35 = 90,031.42 : x
  2. Step 2: Convert to fraction form
    239,802.65/359,638.35 = 90,031.42/x
  3. Step 3: Cross multiply
    239,802.65x = 359,638.35 × 90,031.42
  4. Step 4: Simplify right side
    239,802.65x = 32,378,751,336.96
  5. Step 5: Solve for x
    x = 32,378,751,336.96/239,802.65
  6. Step 6: Final answer
    x = 135,022.49

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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.