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Finding the Fourth Proportional to 353,633.19, 530,444.58 and 87,393.69

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Solution

The fourth proportional to 353,633.19, 530,444.58 and 87,393.69 is: 131,089.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    353,633.19 : 530,444.58 = 87,393.69 : x
  2. Step 2: Convert to fraction form
    353,633.19/530,444.58 = 87,393.69/x
  3. Step 3: Cross multiply
    353,633.19x = 530,444.58 × 87,393.69
  4. Step 4: Simplify right side
    353,633.19x = 46,357,509,186.70
  5. Step 5: Solve for x
    x = 46,357,509,186.70/353,633.19
  6. Step 6: Final answer
    x = 131,089.25

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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.