Home / 282,805.02-390,273.54-155,481.50

Finding the Fourth Proportional to 282,805.02, 390,273.54 and 155,481.50

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Solution

The fourth proportional to 282,805.02, 390,273.54 and 155,481.50 is: 214,565.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,805.02 : 390,273.54 = 155,481.50 : x
  2. Step 2: Convert to fraction form
    282,805.02/390,273.54 = 155,481.50/x
  3. Step 3: Cross multiply
    282,805.02x = 390,273.54 × 155,481.50
  4. Step 4: Simplify right side
    282,805.02x = 60,680,315,409.51
  5. Step 5: Solve for x
    x = 60,680,315,409.51/282,805.02
  6. Step 6: Final answer
    x = 214,565.91

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1.5x scale

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.