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Finding the Fourth Proportional to 490,688.16, 736,031.33 and 153,754.62

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Solution

The fourth proportional to 490,688.16, 736,031.33 and 153,754.62 is: 230,631.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,688.16 : 736,031.33 = 153,754.62 : x
  2. Step 2: Convert to fraction form
    490,688.16/736,031.33 = 153,754.62/x
  3. Step 3: Cross multiply
    490,688.16x = 736,031.33 × 153,754.62
  4. Step 4: Simplify right side
    490,688.16x = 113,168,220,020.17
  5. Step 5: Solve for x
    x = 113,168,220,020.17/490,688.16
  6. Step 6: Final answer
    x = 230,631.65

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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.