Home / 203,223.51-280,448.40-112,585.36

Finding the Fourth Proportional to 203,223.51, 280,448.40 and 112,585.36

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Solution

The fourth proportional to 203,223.51, 280,448.40 and 112,585.36 is: 155,367.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    203,223.51 : 280,448.40 = 112,585.36 : x
  2. Step 2: Convert to fraction form
    203,223.51/280,448.40 = 112,585.36/x
  3. Step 3: Cross multiply
    203,223.51x = 280,448.40 × 112,585.36
  4. Step 4: Simplify right side
    203,223.51x = 31,574,384,075.42
  5. Step 5: Solve for x
    x = 31,574,384,075.42/203,223.51
  6. Step 6: Final answer
    x = 155,367.77

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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.