Home / 390,042.30-584,890.65-179,744.70

Finding the Fourth Proportional to 390,042.30, 584,890.65 and 179,744.70

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Solution

The fourth proportional to 390,042.30, 584,890.65 and 179,744.70 is: 269,537.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    390,042.30 : 584,890.65 = 179,744.70 : x
  2. Step 2: Convert to fraction form
    390,042.30/584,890.65 = 179,744.70/x
  3. Step 3: Cross multiply
    390,042.30x = 584,890.65 × 179,744.70
  4. Step 4: Simplify right side
    390,042.30x = 105,130,994,417.06
  5. Step 5: Solve for x
    x = 105,130,994,417.06/390,042.30
  6. Step 6: Final answer
    x = 269,537.42

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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.