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Finding the Fourth Proportional to 490,681.08, 736,021.36 and 153,748.21

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Solution

The fourth proportional to 490,681.08, 736,021.36 and 153,748.21 is: 230,622.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    490,681.08 : 736,021.36 = 153,748.21 : x
  2. Step 2: Convert to fraction form
    490,681.08/736,021.36 = 153,748.21/x
  3. Step 3: Cross multiply
    490,681.08x = 736,021.36 × 153,748.21
  4. Step 4: Simplify right side
    490,681.08x = 113,161,966,621.77
  5. Step 5: Solve for x
    x = 113,161,966,621.77/490,681.08
  6. Step 6: Final answer
    x = 230,622.23

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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.