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Finding the Fourth Proportional to 357,693.40, 536,345.70 and 120,914.20

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Solution

The fourth proportional to 357,693.40, 536,345.70 and 120,914.20 is: 181,305.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,693.40 : 536,345.70 = 120,914.20 : x
  2. Step 2: Convert to fraction form
    357,693.40/536,345.70 = 120,914.20/x
  3. Step 3: Cross multiply
    357,693.40x = 536,345.70 × 120,914.20
  4. Step 4: Simplify right side
    357,693.40x = 64,851,811,238.94
  5. Step 5: Solve for x
    x = 64,851,811,238.94/357,693.40
  6. Step 6: Final answer
    x = 181,305.59

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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.