Home / 387,945.28-535,060.52-265,510.08

Finding the Fourth Proportional to 387,945.28, 535,060.52 and 265,510.08

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Solution

The fourth proportional to 387,945.28, 535,060.52 and 265,510.08 is: 366,195.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    387,945.28 : 535,060.52 = 265,510.08 : x
  2. Step 2: Convert to fraction form
    387,945.28/535,060.52 = 265,510.08/x
  3. Step 3: Cross multiply
    387,945.28x = 535,060.52 × 265,510.08
  4. Step 4: Simplify right side
    387,945.28x = 142,063,961,470.04
  5. Step 5: Solve for x
    x = 142,063,961,470.04/387,945.28
  6. Step 6: Final answer
    x = 366,195.88

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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.