Home / 388,140.03-535,586.58-216,014.94

Finding the Fourth Proportional to 388,140.03, 535,586.58 and 216,014.94

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Solution

The fourth proportional to 388,140.03, 535,586.58 and 216,014.94 is: 298,074.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    388,140.03 : 535,586.58 = 216,014.94 : x
  2. Step 2: Convert to fraction form
    388,140.03/535,586.58 = 216,014.94/x
  3. Step 3: Cross multiply
    388,140.03x = 535,586.58 × 216,014.94
  4. Step 4: Simplify right side
    388,140.03x = 115,694,702,943.51
  5. Step 5: Solve for x
    x = 115,694,702,943.51/388,140.03
  6. Step 6: Final answer
    x = 298,074.65

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.