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Finding the Fourth Proportional to 357,220.31, 493,373.15 and 235,257.89

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Solution

The fourth proportional to 357,220.31, 493,373.15 and 235,257.89 is: 324,925.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,220.31 : 493,373.15 = 235,257.89 : x
  2. Step 2: Convert to fraction form
    357,220.31/493,373.15 = 235,257.89/x
  3. Step 3: Cross multiply
    357,220.31x = 493,373.15 × 235,257.89
  4. Step 4: Simplify right side
    357,220.31x = 116,069,924,372.93
  5. Step 5: Solve for x
    x = 116,069,924,372.93/357,220.31
  6. Step 6: Final answer
    x = 324,925.33

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.