Home / 282,320.24-389,602.56-155,004.02

Finding the Fourth Proportional to 282,320.24, 389,602.56 and 155,004.02

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Solution

The fourth proportional to 282,320.24, 389,602.56 and 155,004.02 is: 213,905.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,320.24 : 389,602.56 = 155,004.02 : x
  2. Step 2: Convert to fraction form
    282,320.24/389,602.56 = 155,004.02/x
  3. Step 3: Cross multiply
    282,320.24x = 389,602.56 × 155,004.02
  4. Step 4: Simplify right side
    282,320.24x = 60,389,963,002.29
  5. Step 5: Solve for x
    x = 60,389,963,002.29/282,320.24
  6. Step 6: Final answer
    x = 213,905.89

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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.