Home / 282,223.80-389,400.05-159,719.00

Finding the Fourth Proportional to 282,223.80, 389,400.05 and 159,719.00

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Solution

The fourth proportional to 282,223.80, 389,400.05 and 159,719.00 is: 220,373.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    282,223.80 : 389,400.05 = 159,719.00 : x
  2. Step 2: Convert to fraction form
    282,223.80/389,400.05 = 159,719.00/x
  3. Step 3: Cross multiply
    282,223.80x = 389,400.05 × 159,719.00
  4. Step 4: Simplify right side
    282,223.80x = 62,194,583,840.35
  5. Step 5: Solve for x
    x = 62,194,583,840.35/282,223.80
  6. Step 6: Final answer
    x = 220,373.28

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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.