Home / 388,721.63-581,765.74-239,056.85

Finding the Fourth Proportional to 388,721.63, 581,765.74 and 239,056.85

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Solution

The fourth proportional to 388,721.63, 581,765.74 and 239,056.85 is: 357,775.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,721.63 : 581,765.74 = 239,056.85 : x
  2. Step 2: Convert to fraction form
    388,721.63/581,765.74 = 239,056.85/x
  3. Step 3: Cross multiply
    388,721.63x = 581,765.74 × 239,056.85
  4. Step 4: Simplify right side
    388,721.63x = 139,075,081,735.85
  5. Step 5: Solve for x
    x = 139,075,081,735.85/388,721.63
  6. Step 6: Final answer
    x = 357,775.52

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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.