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Finding the Fourth Proportional to 296,909.51, 445,357.98 and 72,271.19

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Solution

The fourth proportional to 296,909.51, 445,357.98 and 72,271.19 is: 108,405.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    296,909.51 : 445,357.98 = 72,271.19 : x
  2. Step 2: Convert to fraction form
    296,909.51/445,357.98 = 72,271.19/x
  3. Step 3: Cross multiply
    296,909.51x = 445,357.98 × 72,271.19
  4. Step 4: Simplify right side
    296,909.51x = 32,186,552,303.99
  5. Step 5: Solve for x
    x = 32,186,552,303.99/296,909.51
  6. Step 6: Final answer
    x = 108,405.26

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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.