Home / 282,070.02-420,173.34-266,790.78

Finding the Fourth Proportional to 282,070.02, 420,173.34 and 266,790.78

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Solution

The fourth proportional to 282,070.02, 420,173.34 and 266,790.78 is: 397,413.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,070.02 : 420,173.34 = 266,790.78 : x
  2. Step 2: Convert to fraction form
    282,070.02/420,173.34 = 266,790.78/x
  3. Step 3: Cross multiply
    282,070.02x = 420,173.34 × 266,790.78
  4. Step 4: Simplify right side
    282,070.02x = 112,098,373,113.81
  5. Step 5: Solve for x
    x = 112,098,373,113.81/282,070.02
  6. Step 6: Final answer
    x = 397,413.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.