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Finding the Fourth Proportional to 353,497.12, 530,238.50 and 87,259.94

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Solution

The fourth proportional to 353,497.12, 530,238.50 and 87,259.94 is: 130,888.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,497.12 : 530,238.50 = 87,259.94 : x
  2. Step 2: Convert to fraction form
    353,497.12/530,238.50 = 87,259.94/x
  3. Step 3: Cross multiply
    353,497.12x = 530,238.50 × 87,259.94
  4. Step 4: Simplify right side
    353,497.12x = 46,268,579,259.39
  5. Step 5: Solve for x
    x = 46,268,579,259.39/353,497.12
  6. Step 6: Final answer
    x = 130,888.14

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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.