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Finding the Fourth Proportional to 357,459.77, 536,189.31 and 91,220.29

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Solution

The fourth proportional to 357,459.77, 536,189.31 and 91,220.29 is: 136,830.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,459.77 : 536,189.31 = 91,220.29 : x
  2. Step 2: Convert to fraction form
    357,459.77/536,189.31 = 91,220.29/x
  3. Step 3: Cross multiply
    357,459.77x = 536,189.31 × 91,220.29
  4. Step 4: Simplify right side
    357,459.77x = 48,911,341,672.15
  5. Step 5: Solve for x
    x = 48,911,341,672.15/357,459.77
  6. Step 6: Final answer
    x = 136,830.34

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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.