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Finding the Fourth Proportional to 283,317.40, 424,976.10 and 157,346.20

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Solution

The fourth proportional to 283,317.40, 424,976.10 and 157,346.20 is: 236,019.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    283,317.40 : 424,976.10 = 157,346.20 : x
  2. Step 2: Convert to fraction form
    283,317.40/424,976.10 = 157,346.20/x
  3. Step 3: Cross multiply
    283,317.40x = 424,976.10 × 157,346.20
  4. Step 4: Simplify right side
    283,317.40x = 66,868,374,425.82
  5. Step 5: Solve for x
    x = 66,868,374,425.82/283,317.40
  6. Step 6: Final answer
    x = 236,019.30

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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.