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Finding the Fourth Proportional to 478,329, 717,526.31 and 158,480.25

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Solution

The fourth proportional to 478,329, 717,526.31 and 158,480.25 is: 237,731.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    478,329 : 717,526.31 = 158,480.25 : x
  2. Step 2: Convert to fraction form
    478,329/717,526.31 = 158,480.25/x
  3. Step 3: Cross multiply
    478,329x = 717,526.31 × 158,480.25
  4. Step 4: Simplify right side
    478,329x = 113,713,748,197.98
  5. Step 5: Solve for x
    x = 113,713,748,197.98/478,329
  6. Step 6: Final answer
    x = 237,731.24

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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.