Home / 282,849.52-390,342.36-155,534.80

Finding the Fourth Proportional to 282,849.52, 390,342.36 and 155,534.80

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Solution

The fourth proportional to 282,849.52, 390,342.36 and 155,534.80 is: 214,643.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,849.52 : 390,342.36 = 155,534.80 : x
  2. Step 2: Convert to fraction form
    282,849.52/390,342.36 = 155,534.80/x
  3. Step 3: Cross multiply
    282,849.52x = 390,342.36 × 155,534.80
  4. Step 4: Simplify right side
    282,849.52x = 60,711,820,894.13
  5. Step 5: Solve for x
    x = 60,711,820,894.13/282,849.52
  6. Step 6: Final answer
    x = 214,643.54

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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.