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Finding the Fourth Proportional to 357,701.29, 536,218.40 and 120,878.35

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Solution

The fourth proportional to 357,701.29, 536,218.40 and 120,878.35 is: 181,204.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    357,701.29 : 536,218.40 = 120,878.35 : x
  2. Step 2: Convert to fraction form
    357,701.29/536,218.40 = 120,878.35/x
  3. Step 3: Cross multiply
    357,701.29x = 536,218.40 × 120,878.35
  4. Step 4: Simplify right side
    357,701.29x = 64,817,194,393.29
  5. Step 5: Solve for x
    x = 64,817,194,393.29/357,701.29
  6. Step 6: Final answer
    x = 181,204.81

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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.