Home / 282,935.52-390,463.38-155,615.76

Finding the Fourth Proportional to 282,935.52, 390,463.38 and 155,615.76

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Solution

The fourth proportional to 282,935.52, 390,463.38 and 155,615.76 is: 214,756.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,935.52 : 390,463.38 = 155,615.76 : x
  2. Step 2: Convert to fraction form
    282,935.52/390,463.38 = 155,615.76/x
  3. Step 3: Cross multiply
    282,935.52x = 390,463.38 × 155,615.76
  4. Step 4: Simplify right side
    282,935.52x = 60,762,255,630.87
  5. Step 5: Solve for x
    x = 60,762,255,630.87/282,935.52
  6. Step 6: Final answer
    x = 214,756.55

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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.