Home / 282,736.02-390,179.40-155,410.50

Finding the Fourth Proportional to 282,736.02, 390,179.40 and 155,410.50

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Solution

The fourth proportional to 282,736.02, 390,179.40 and 155,410.50 is: 214,468.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,736.02 : 390,179.40 = 155,410.50 : x
  2. Step 2: Convert to fraction form
    282,736.02/390,179.40 = 155,410.50/x
  3. Step 3: Cross multiply
    282,736.02x = 390,179.40 × 155,410.50
  4. Step 4: Simplify right side
    282,736.02x = 60,637,975,643.70
  5. Step 5: Solve for x
    x = 60,637,975,643.70/282,736.02
  6. Step 6: Final answer
    x = 214,468.52

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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.