Home / 643,555.12-965,389.42-238,752.02

Finding the Fourth Proportional to 643,555.12, 965,389.42 and 238,752.02

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Solution

The fourth proportional to 643,555.12, 965,389.42 and 238,752.02 is: 358,149.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    643,555.12 : 965,389.42 = 238,752.02 : x
  2. Step 2: Convert to fraction form
    643,555.12/965,389.42 = 238,752.02/x
  3. Step 3: Cross multiply
    643,555.12x = 965,389.42 × 238,752.02
  4. Step 4: Simplify right side
    643,555.12x = 230,488,674,111.63
  5. Step 5: Solve for x
    x = 230,488,674,111.63/643,555.12
  6. Step 6: Final answer
    x = 358,149.08

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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.